15512030142 has 32 divisors (see below), whose sum is σ = 36125056512. Its totient is φ = 4348385184.

The previous prime is 15512030113. The next prime is 15512030147. The reversal of 15512030142 is 24103021551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15512030147) 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, 3482058 + ... + 3486509.

It is an arithmetic number, because the mean of its divisors is an integer number (1128908016).

Almost surely, 2^15512030142 is an apocalyptic number.

15512030142 is an abundant number, since it is smaller than the sum of its proper divisors (20613026370).

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

15512030142 is a wasteful number, since it uses less digits than its factorization.

15512030142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968632.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15512030142 its reverse (24103021551), we get a palindrome (39615051693).

The spelling of 15512030142 in words is "fifteen billion, five hundred twelve million, thirty thousand, one hundred forty-two".