131522632 has 8 divisors (see below), whose sum is σ = 246604950. Its totient is φ = 65761312.

The previous prime is 131522563. The next prime is 131522639. The reversal of 131522632 is 236225131.

It can be written as a sum of positive squares in only one way, i.e., 92659876 + 38862756 = 9626^2 + 6234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 131522597 and 131522606.

It is not an unprimeable number, because it can be changed into a prime (131522639) by changing a digit.

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, 8220157 + ... + 8220172.

Almost surely, 2^131522632 is an apocalyptic number.

It is an amenable number.

131522632 is a deficient number, since it is larger than the sum of its proper divisors (115082318).

131522632 is a wasteful number, since it uses less digits than its factorization.

131522632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16440335 (or 16440331 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 131522632 is about 11468.3317008186. The cubic root of 131522632 is about 508.5498108233.

Adding to 131522632 its reverse (236225131), we get a palindrome (367747763).

The spelling of 131522632 in words is "one hundred thirty-one million, five hundred twenty-two thousand, six hundred thirty-two".