145854942231 has 32 divisors (see below), whose sum is σ = 198460440576. Its totient is φ = 95261516000.

The previous prime is 145854942229. The next prime is 145854942269. The reversal of 145854942231 is 132249458541.

It is a happy number.

145854942231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145854942231 - 2¹ = 145854942229 is a prime.

It is a super-2 number, since 2×145854942231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145854942731) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60494416 + ... + 60496826.

It is an arithmetic number, because the mean of its divisors is an integer number (6201888768).

Almost surely, 2^145854942231 is an apocalyptic number.

145854942231 is a deficient number, since it is larger than the sum of its proper divisors (52605498345).

145854942231 is a wasteful number, since it uses less digits than its factorization.

145854942231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

The product of its digits is 1382400, while the sum is 48.

The spelling of 145854942231 in words is "one hundred forty-five billion, eight hundred fifty-four million, nine hundred forty-two thousand, two hundred thirty-one".