131156970 has 64 divisors (see below), whose sum is σ = 371367936. Its totient is φ = 29010240.

The previous prime is 131156959. The next prime is 131157011. The reversal of 131156970 is 79651131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3564 + ... + 16583.

It is an arithmetic number, because the mean of its divisors is an integer number (5802624).

Almost surely, 2^131156970 is an apocalyptic number.

131156970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131156970 is an abundant number, since it is smaller than the sum of its proper divisors (240210966).

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

131156970 is a wasteful number, since it uses less digits than its factorization.

131156970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20195.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 131156970 is about 11452.3783556081. The cubic root of 131156970 is about 508.0780797380.

The spelling of 131156970 in words is "one hundred thirty-one million, one hundred fifty-six thousand, nine hundred seventy".