7913156 has 6 divisors (see below), whose sum is σ = 13848030. Its totient is φ = 3956576.

The previous prime is 7913117. The next prime is 7913159. The reversal of 7913156 is 6513197.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 1359556 = 2560^2 + 1166^2 .

It is not an unprimeable number, because it can be changed into a prime (7913159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989141 + ... + 989148.

It is an arithmetic number, because the mean of its divisors is an integer number (2308005).

Almost surely, 2^7913156 is an apocalyptic number.

It is an amenable number.

7913156 is a deficient number, since it is larger than the sum of its proper divisors (5934874).

7913156 is a wasteful number, since it uses less digits than its factorization.

7913156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978293 (or 1978291 counting only the distinct ones).

The product of its digits is 5670, while the sum is 32.

The square root of 7913156 is about 2813.0332383390. The cubic root of 7913156 is about 199.2736653833.

The spelling of 7913156 in words is "seven million, nine hundred thirteen thousand, one hundred fifty-six".