915197013 has 6 divisors (see below), whose sum is σ = 1321951254. Its totient is φ = 610131336.

The previous prime is 915197011. The next prime is 915197021. The reversal of 915197013 is 310791519.

915197013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 561832209 + 353364804 = 23703^2 + 18798^2 .

It is not a de Polignac number, because 915197013 - 2¹ = 915197011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (915197011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50844270 + ... + 50844287.

It is an arithmetic number, because the mean of its divisors is an integer number (220325209).

Almost surely, 2^915197013 is an apocalyptic number.

It is an amenable number.

915197013 is a deficient number, since it is larger than the sum of its proper divisors (406754241).

915197013 is a wasteful number, since it uses less digits than its factorization.

915197013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101688563 (or 101688560 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 36.

The square root of 915197013 is about 30252.2232736703. The cubic root of 915197013 is about 970.8933609078.

The spelling of 915197013 in words is "nine hundred fifteen million, one hundred ninety-seven thousand, thirteen".