15135091238 has 16 divisors (see below), whose sum is σ = 23259356736. Its totient is φ = 7382408040.

The previous prime is 15135091201. The next prime is 15135091243. The reversal of 15135091238 is 83219053151.

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, 38756 + ... + 178247.

It is an arithmetic number, because the mean of its divisors is an integer number (1453709796).

Almost surely, 2^15135091238 is an apocalyptic number.

15135091238 is a deficient number, since it is larger than the sum of its proper divisors (8124265498).

15135091238 is a wasteful number, since it uses less digits than its factorization.

15135091238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217859.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 15135091238 in words is "fifteen billion, one hundred thirty-five million, ninety-one thousand, two hundred thirty-eight".