15145025442 has 16 divisors (see below), whose sum is σ = 30994471200. Its totient is φ = 4930938432.

The previous prime is 15145025437. The next prime is 15145025443. The reversal of 15145025442 is 24452054151.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15145025443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29350567 + ... + 29351082.

It is an arithmetic number, because the mean of its divisors is an integer number (1937154450).

Almost surely, 2^15145025442 is an apocalyptic number.

15145025442 is an abundant number, since it is smaller than the sum of its proper divisors (15849445758).

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

15145025442 is a wasteful number, since it uses less digits than its factorization.

15145025442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58701697.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 15145025442 its reverse (24452054151), we get a palindrome (39597079593).

The spelling of 15145025442 in words is "fifteen billion, one hundred forty-five million, twenty-five thousand, four hundred forty-two".