152138813965 has 4 divisors (see below), whose sum is σ = 182566576764. Its totient is φ = 121711051168.

The previous prime is 152138813951. The next prime is 152138814013. The reversal of 152138813965 is 569318831251.

It is a happy number.

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 108121934761 + 44016879204 = 328819^2 + 209802^2 .

It is a cyclic number.

It is not a de Polignac number, because 152138813965 - 2²¹ = 152136716813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15213881392 + ... + 15213881401.

It is an arithmetic number, because the mean of its divisors is an integer number (45641644191).

Almost surely, 2^152138813965 is an apocalyptic number.

It is an amenable number.

152138813965 is a deficient number, since it is larger than the sum of its proper divisors (30427762799).

152138813965 is an equidigital number, since it uses as much as digits as its factorization.

152138813965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30427762798.

The product of its digits is 1555200, while the sum is 52.

The spelling of 152138813965 in words is "one hundred fifty-two billion, one hundred thirty-eight million, eight hundred thirteen thousand, nine hundred sixty-five".