15326140523 has 4 divisors (see below), whose sum is σ = 15326405808. Its totient is φ = 15325875240.

The previous prime is 15326140483. The next prime is 15326140631. The reversal of 15326140523 is 32504162351.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 15326140523 - 2²⁶ = 15259031659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15326140523.

It is not an unprimeable number, because it can be changed into a prime (15326142523) 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, 5111 + ... + 175152.

It is an arithmetic number, because the mean of its divisors is an integer number (3831601452).

Almost surely, 2^15326140523 is an apocalyptic number.

15326140523 is a deficient number, since it is larger than the sum of its proper divisors (265285).

15326140523 is an equidigital number, since it uses as much as digits as its factorization.

15326140523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265284.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 15326140523 in words is "fifteen billion, three hundred twenty-six million, one hundred forty thousand, five hundred twenty-three".