236306861145 has 12 divisors (see below), whose sum is σ = 409598559396. Its totient is φ = 126030325920.

The previous prime is 236306861117. The next prime is 236306861171. The reversal of 236306861145 is 541168603632.

236306861145 is a `hidden beast` number, since 2 + 3 + 630 + 6 + 8 + 6 + 1 + 1 + 4 + 5 = 666.

236306861145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 91983610944 + 144323250201 = 303288^2 + 379899^2 .

It is not a de Polignac number, because 236306861145 - 2¹⁶ = 236306795609 is a prime.

It is a super-2 number, since 2×236306861145² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5251263581 = 236306861145 / (2 + 3 + 6 + 3 + 0 + 6 + 8 + 6 + 1 + 1 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 236306861145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2625631746 + ... + 2625631835.

It is an arithmetic number, because the mean of its divisors is an integer number (34133213283).

Almost surely, 2^236306861145 is an apocalyptic number.

It is an amenable number.

236306861145 is a deficient number, since it is larger than the sum of its proper divisors (173291698251).

236306861145 is a wasteful number, since it uses less digits than its factorization.

236306861145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251263592 (or 5251263589 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 236306861145 in words is "two hundred thirty-six billion, three hundred six million, eight hundred sixty-one thousand, one hundred forty-five".