131996534 has 16 divisors (see below), whose sum is σ = 220676400. Its totient is φ = 58846464.

The previous prime is 131996531. The next prime is 131996537. The reversal of 131996534 is 435699131.

It is an interprime number because it is at equal distance from previous prime (131996531) and next prime (131996537).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131996491 and 131996500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131996531) 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, 101519 + ... + 102810.

It is an arithmetic number, because the mean of its divisors is an integer number (13792275).

Almost surely, 2^131996534 is an apocalyptic number.

131996534 is a deficient number, since it is larger than the sum of its proper divisors (88679866).

131996534 is a wasteful number, since it uses less digits than its factorization.

131996534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204367.

The product of its digits is 87480, while the sum is 41.

The square root of 131996534 is about 11488.9744537970. The cubic root of 131996534 is about 509.1598804532.

The spelling of 131996534 in words is "one hundred thirty-one million, nine hundred ninety-six thousand, five hundred thirty-four".