15045142122 has 64 divisors (see below), whose sum is σ = 35162357760. Its totient is φ = 4759180272.

The previous prime is 15045142117. The next prime is 15045142157. The reversal of 15045142122 is 22124154051.

It is a happy number.

15045142122 is a `hidden beast` number, since 1 + 50 + 451 + 42 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110043 + ... + 205425.

It is an arithmetic number, because the mean of its divisors is an integer number (549411840).

Almost surely, 2^15045142122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15045142122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17581178880).

15045142122 is an abundant number, since it is smaller than the sum of its proper divisors (20117215638).

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

15045142122 is a wasteful number, since it uses less digits than its factorization.

15045142122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95544 (or 95538 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 15045142122 its reverse (22124154051), we get a palindrome (37169296173).

The spelling of 15045142122 in words is "fifteen billion, forty-five million, one hundred forty-two thousand, one hundred twenty-two".