131500332 has 36 divisors (see below), whose sum is σ = 332752056. Its totient is φ = 43787520.

The previous prime is 131500279. The next prime is 131500333. The reversal of 131500332 is 233005131.

131500332 is a `hidden beast` number, since 131 + 500 + 3 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×131500332² = 34584674632220448, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (131500333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64188 + ... + 66204.

Almost surely, 2^131500332 is an apocalyptic number.

131500332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131500332 is an abundant number, since it is smaller than the sum of its proper divisors (201251724).

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

131500332 is a wasteful number, since it uses less digits than its factorization.

131500332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838 (or 3833 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 131500332 is about 11467.3594170585. The cubic root of 131500332 is about 508.5210672232.

Adding to 131500332 its reverse (233005131), we get a palindrome (364505463).

The spelling of 131500332 in words is "one hundred thirty-one million, five hundred thousand, three hundred thirty-two".