131012532 has 48 divisors (see below), whose sum is σ = 388187520. Its totient is φ = 37431936.

The previous prime is 131012521. The next prime is 131012533. The reversal of 131012532 is 235210131.

131012532 is a `hidden beast` number, since 131 + 0 + 1 + 2 + 532 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85893 + ... + 87404.

It is an arithmetic number, because the mean of its divisors is an integer number (8087240).

Almost surely, 2^131012532 is an apocalyptic number.

131012532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131012532 is an abundant number, since it is smaller than the sum of its proper divisors (257174988).

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

131012532 is a wasteful number, since it uses less digits than its factorization.

131012532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173317 (or 173309 counting only the distinct ones).

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

The square root of 131012532 is about 11446.0705921290. The cubic root of 131012532 is about 507.8915024454.

Adding to 131012532 its reverse (235210131), we get a palindrome (366222663).

The spelling of 131012532 in words is "one hundred thirty-one million, twelve thousand, five hundred thirty-two".