131323964 has 6 divisors (see below), whose sum is σ = 229816944. Its totient is φ = 65661980.

The previous prime is 131323961. The next prime is 131323979. The reversal of 131323964 is 469323131.

It is a self number, because there is not a number n which added to its sum of digits gives 131323964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131323961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16415492 + ... + 16415499.

It is an arithmetic number, because the mean of its divisors is an integer number (38302824).

Almost surely, 2^131323964 is an apocalyptic number.

It is an amenable number.

131323964 is a deficient number, since it is larger than the sum of its proper divisors (98492980).

131323964 is a wasteful number, since it uses less digits than its factorization.

131323964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32830995 (or 32830993 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 131323964 is about 11459.6668363439. Note that the first 3 decimals coincide. The cubic root of 131323964 is about 508.2936230080.

The spelling of 131323964 in words is "one hundred thirty-one million, three hundred twenty-three thousand, nine hundred sixty-four".