15005140542 has 96 divisors (see below), whose sum is σ = 41070615840. Its totient is φ = 4034983680.

The previous prime is 15005140487. The next prime is 15005140597. The reversal of 15005140542 is 24504150051.

It is an interprime number because it is at equal distance from previous prime (15005140487) and next prime (15005140597).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121809 + ... + 211772.

It is an arithmetic number, because the mean of its divisors is an integer number (427818915).

Almost surely, 2^15005140542 is an apocalyptic number.

15005140542 is an abundant number, since it is smaller than the sum of its proper divisors (26065475298).

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

15005140542 is a wasteful number, since it uses less digits than its factorization.

15005140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333623 (or 333610 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 15005140542 its reverse (24504150051), we get a palindrome (39509290593).

The spelling of 15005140542 in words is "fifteen billion, five million, one hundred forty thousand, five hundred forty-two".