131506012 has 24 divisors (see below), whose sum is σ = 251525232. Its totient is φ = 59664000.

The previous prime is 131505991. The next prime is 131506013. The reversal of 131506012 is 210605131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131506013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23958 + ... + 28930.

It is an arithmetic number, because the mean of its divisors is an integer number (10480218).

Almost surely, 2^131506012 is an apocalyptic number.

It is an amenable number.

131506012 is a deficient number, since it is larger than the sum of its proper divisors (120019220).

131506012 is a wasteful number, since it uses less digits than its factorization.

131506012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 131506012 is about 11467.6070738406. The cubic root of 131506012 is about 508.5283887715.

The spelling of 131506012 in words is "one hundred thirty-one million, five hundred six thousand, twelve".