131503996 has 12 divisors (see below), whose sum is σ = 247834552. Its totient is φ = 60694128.

The previous prime is 131503991. The next prime is 131504003. The reversal of 131503996 is 699305131.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131503991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264410 + ... + 1264513.

Almost surely, 2^131503996 is an apocalyptic number.

It is an amenable number.

131503996 is a deficient number, since it is larger than the sum of its proper divisors (116330556).

131503996 is a wasteful number, since it uses less digits than its factorization.

131503996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528940 (or 2528938 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 131503996 is about 11467.5191737359. The cubic root of 131503996 is about 508.5257901616.

The spelling of 131503996 in words is "one hundred thirty-one million, five hundred three thousand, nine hundred ninety-six".