15040451002 has 4 divisors (see below), whose sum is σ = 22560676506. Its totient is φ = 7520225500.

The previous prime is 15040450969. The next prime is 15040451017. The reversal of 15040451002 is 20015404051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20015404051 = 967 ⋅20698453.

It can be written as a sum of positive squares in only one way, i.e., 10943042881 + 4097408121 = 104609^2 + 64011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760112749 + ... + 3760112752.

Almost surely, 2^15040451002 is an apocalyptic number.

15040451002 is a deficient number, since it is larger than the sum of its proper divisors (7520225504).

15040451002 is an equidigital number, since it uses as much as digits as its factorization.

15040451002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7520225503.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 15040451002 its reverse (20015404051), we get a palindrome (35055855053).

The spelling of 15040451002 in words is "fifteen billion, forty million, four hundred fifty-one thousand, two".