131125532 has 12 divisors (see below), whose sum is σ = 229737480. Its totient is φ = 65486256.

The previous prime is 131125529. The next prime is 131125537. The reversal of 131125532 is 235521131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131125498 and 131125507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131125537) 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 in 3 ways as a sum of consecutive naturals, for example, 15182 + ... + 22197.

It is an arithmetic number, because the mean of its divisors is an integer number (19144790).

Almost surely, 2^131125532 is an apocalyptic number.

It is an amenable number.

131125532 is a deficient number, since it is larger than the sum of its proper divisors (98611948).

131125532 is a wasteful number, since it uses less digits than its factorization.

131125532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38260 (or 38258 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 131125532 is about 11451.0057200230. The cubic root of 131125532 is about 508.0374814761.

Adding to 131125532 its reverse (235521131), we get a palindrome (366646663).

The spelling of 131125532 in words is "one hundred thirty-one million, one hundred twenty-five thousand, five hundred thirty-two".