131905532 has 12 divisors (see below), whose sum is σ = 251819736. Its totient is φ = 59957040.

The previous prime is 131905531. The next prime is 131905541. The reversal of 131905532 is 235509131.

It is a junction number, because it is equal to n+sod(n) for n = 131905495 and 131905504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131905531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498883 + ... + 1498970.

It is an arithmetic number, because the mean of its divisors is an integer number (20984978).

Almost surely, 2^131905532 is an apocalyptic number.

It is an amenable number.

131905532 is a deficient number, since it is larger than the sum of its proper divisors (119914204).

131905532 is a wasteful number, since it uses less digits than its factorization.

131905532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997868 (or 2997866 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 131905532 is about 11485.0133652513. The cubic root of 131905532 is about 509.0428439972.

The spelling of 131905532 in words is "one hundred thirty-one million, nine hundred five thousand, five hundred thirty-two".