15530034142 has 32 divisors (see below), whose sum is σ = 28286081280. Its totient is φ = 6246486720.

The previous prime is 15530034139. The next prime is 15530034197. The reversal of 15530034142 is 24143003551.

It is a self number, because there is not a number n which added to its sum of digits gives 15530034142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244359 + ... + 301282.

It is an arithmetic number, because the mean of its divisors is an integer number (883940040).

Almost surely, 2^15530034142 is an apocalyptic number.

15530034142 is a deficient number, since it is larger than the sum of its proper divisors (12756047138).

15530034142 is a wasteful number, since it uses less digits than its factorization.

15530034142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545776.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 15530034142 its reverse (24143003551), we get a palindrome (39673037693).

The spelling of 15530034142 in words is "fifteen billion, five hundred thirty million, thirty-four thousand, one hundred forty-two".