131971072 has 24 divisors (see below), whose sum is σ = 263881800. Its totient is φ = 65984512.

The previous prime is 131971067. The next prime is 131971109. The reversal of 131971072 is 270179131.

It is a congruent number.

It is an unprimeable number.

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, 30172 + ... + 34267.

It is an arithmetic number, because the mean of its divisors is an integer number (10995075).

Almost surely, 2^131971072 is an apocalyptic number.

It is an amenable number.

131971072 is a deficient number, since it is larger than the sum of its proper divisors (131910728).

131971072 is an frugal number, since it uses more digits than its factorization.

131971072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64461 (or 64441 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 131971072 is about 11487.8662944865. The cubic root of 131971072 is about 509.1271395366.

The spelling of 131971072 in words is "one hundred thirty-one million, nine hundred seventy-one thousand, seventy-two".