131535412 has 24 divisors (see below), whose sum is σ = 234612000. Its totient is φ = 64514976.

The previous prime is 131535403. The next prime is 131535419. The reversal of 131535412 is 214535131.

It is a happy number.

It is a super-2 number, since 2×131535412² = 34603129220019488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131535419) 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, 48139 + ... + 50797.

It is an arithmetic number, because the mean of its divisors is an integer number (9775500).

Almost surely, 2^131535412 is an apocalyptic number.

It is an amenable number.

131535412 is a deficient number, since it is larger than the sum of its proper divisors (103076588).

131535412 is a wasteful number, since it uses less digits than its factorization.

131535412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2893 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 131535412 is about 11468.8888738186. Note that the first 4 decimals coincide. The cubic root of 131535412 is about 508.5662821483.

The spelling of 131535412 in words is "one hundred thirty-one million, five hundred thirty-five thousand, four hundred twelve".