131132502 has 12 divisors (see below), whose sum is σ = 284120460. Its totient is φ = 43710828.

The previous prime is 131132501. The next prime is 131132537. The reversal of 131132502 is 205231131.

131132502 is a `hidden beast` number, since 1 + 31 + 132 + 502 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7285139 = 131132502 / (1 + 3 + 1 + 1 + 3 + 2 + 5 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131132501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3642552 + ... + 3642587.

It is an arithmetic number, because the mean of its divisors is an integer number (23676705).

Almost surely, 2^131132502 is an apocalyptic number.

131132502 is an abundant number, since it is smaller than the sum of its proper divisors (152987958).

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

131132502 is a wasteful number, since it uses less digits than its factorization.

131132502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285147 (or 7285144 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131132502 is about 11451.3100560591. The cubic root of 131132502 is about 508.0464829229.

Adding to 131132502 its reverse (205231131), we get a palindrome (336363633).

The spelling of 131132502 in words is "one hundred thirty-one million, one hundred thirty-two thousand, five hundred two".