9975156 has 24 divisors (see below), whose sum is σ = 23336544. Its totient is φ = 3316320.

The previous prime is 9975131. The next prime is 9975157. The reversal of 9975156 is 6515799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5046 + ... + 6738.

It is an arithmetic number, because the mean of its divisors is an integer number (972356).

Almost surely, 2^9975156 is an apocalyptic number.

It is an amenable number.

9975156 is an abundant number, since it is smaller than the sum of its proper divisors (13361388).

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

9975156 is a wasteful number, since it uses less digits than its factorization.

9975156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191 (or 2189 counting only the distinct ones).

The product of its digits is 85050, while the sum is 42.

The square root of 9975156 is about 3158.3470360301. The cubic root of 9975156 is about 215.2649051286.

The spelling of 9975156 in words is "nine million, nine hundred seventy-five thousand, one hundred fifty-six".