15157010215 has 4 divisors (see below), whose sum is σ = 18188412264. Its totient is φ = 12125608168.

The previous prime is 15157010179. The next prime is 15157010233. The reversal of 15157010215 is 51201075151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15157010215 is a prime.

It is a super-2 number, since 2×15157010215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515701017 + ... + 1515701026.

It is an arithmetic number, because the mean of its divisors is an integer number (4547103066).

Almost surely, 2^15157010215 is an apocalyptic number.

15157010215 is a deficient number, since it is larger than the sum of its proper divisors (3031402049).

15157010215 is an equidigital number, since it uses as much as digits as its factorization.

15157010215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031402048.

The product of its (nonzero) digits is 1750, while the sum is 28.

Adding to 15157010215 its reverse (51201075151), we get a palindrome (66358085366).

The spelling of 15157010215 in words is "fifteen billion, one hundred fifty-seven million, ten thousand, two hundred fifteen".