15145402572 has 48 divisors (see below), whose sum is σ = 40973076480. Its totient is φ = 4828968144.

The previous prime is 15145402513. The next prime is 15145402577. The reversal of 15145402572 is 27520454151.

15145402572 is a `hidden beast` number, since 1 + 5 + 1 + 45 + 40 + 2 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15145402577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046108 + ... + 3051075.

It is an arithmetic number, because the mean of its divisors is an integer number (853605760).

Almost surely, 2^15145402572 is an apocalyptic number.

15145402572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15145402572 is an abundant number, since it is smaller than the sum of its proper divisors (25827673908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15145402572 is a wasteful number, since it uses less digits than its factorization.

15145402572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097219 (or 6097211 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 15145402572 in words is "fifteen billion, one hundred forty-five million, four hundred two thousand, five hundred seventy-two".