148864181365 has 4 divisors (see below), whose sum is σ = 178637017644. Its totient is φ = 119091345088.

The previous prime is 148864181359. The next prime is 148864181369. The reversal of 148864181365 is 563181468841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24536716164 + 124327465201 = 156642^2 + 352601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148864181365 is a prime.

It is a super-2 number, since 2×148864181365² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148864181369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14886418132 + ... + 14886418141.

It is an arithmetic number, because the mean of its divisors is an integer number (44659254411).

Almost surely, 2^148864181365 is an apocalyptic number.

It is an amenable number.

148864181365 is a deficient number, since it is larger than the sum of its proper divisors (29772836279).

148864181365 is an equidigital number, since it uses as much as digits as its factorization.

148864181365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29772836278.

The product of its digits is 4423680, while the sum is 55.

The spelling of 148864181365 in words is "one hundred forty-eight billion, eight hundred sixty-four million, one hundred eighty-one thousand, three hundred sixty-five".