131616040531 has 8 divisors (see below), whose sum is σ = 131743614800. Its totient is φ = 131488528608.

The previous prime is 131616040499. The next prime is 131616040541. The reversal of 131616040531 is 135040616131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131616040531 - 2⁵ = 131616040499 is a prime.

It is a super-2 number, since 2×131616040531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131616040493 and 131616040502.

It is not an unprimeable number, because it can be changed into a prime (131616040541) 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, 4942705 + ... + 4969261.

It is an arithmetic number, because the mean of its divisors is an integer number (16467951850).

Almost surely, 2^131616040531 is an apocalyptic number.

131616040531 is a deficient number, since it is larger than the sum of its proper divisors (127574269).

131616040531 is a wasteful number, since it uses less digits than its factorization.

131616040531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31173.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 131616040531 its reverse (135040616131), we get a palindrome (266656656662).

The spelling of 131616040531 in words is "one hundred thirty-one billion, six hundred sixteen million, forty thousand, five hundred thirty-one".