15142434542 has 16 divisors (see below), whose sum is σ = 22996915200. Its totient is φ = 7477367160.

The previous prime is 15142434533. The next prime is 15142434569. The reversal of 15142434542 is 24543424151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89492 + ... + 195687.

It is an arithmetic number, because the mean of its divisors is an integer number (1437307200).

Almost surely, 2^15142434542 is an apocalyptic number.

15142434542 is a deficient number, since it is larger than the sum of its proper divisors (7854480658).

15142434542 is a wasteful number, since it uses less digits than its factorization.

15142434542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285511.

The product of its digits is 76800, while the sum is 35.

Adding to 15142434542 its reverse (24543424151), we get a palindrome (39685858693).

The spelling of 15142434542 in words is "fifteen billion, one hundred forty-two million, four hundred thirty-four thousand, five hundred forty-two".