131129156 has 12 divisors (see below), whose sum is σ = 230803692. Its totient is φ = 65185248.

The previous prime is 131129137. The next prime is 131129171. The reversal of 131129156 is 651921131.

It can be written as a sum of positive squares in 2 ways, for example, as 95726656 + 35402500 = 9784^2 + 5950^2 .

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, 94055 + ... + 95438.

It is an arithmetic number, because the mean of its divisors is an integer number (19233641).

Almost surely, 2^131129156 is an apocalyptic number.

It is an amenable number.

131129156 is a deficient number, since it is larger than the sum of its proper divisors (99674536).

131129156 is a wasteful number, since it uses less digits than its factorization.

131129156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189670 (or 189668 counting only the distinct ones).

The product of its digits is 1620, while the sum is 29.

The square root of 131129156 is about 11451.1639583057. The cubic root of 131129156 is about 508.0421617517.

The spelling of 131129156 in words is "one hundred thirty-one million, one hundred twenty-nine thousand, one hundred fifty-six".