131272533639 has 96 divisors (see below), whose sum is σ = 215927712000. Its totient is φ = 76286665728.

The previous prime is 131272533611. The next prime is 131272533671. The reversal of 131272533639 is 936335272131.

131272533639 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 7 + 2 + 5 + 3 + 3 + 639 = 666.

It is not a de Polignac number, because 131272533639 - 2³³ = 122682599047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131272533594 and 131272533603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131272534639) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29214877 + ... + 29219369.

It is an arithmetic number, because the mean of its divisors is an integer number (2249247000).

Almost surely, 2^131272533639 is an apocalyptic number.

131272533639 is a deficient number, since it is larger than the sum of its proper divisors (84655178361).

131272533639 is a wasteful number, since it uses less digits than its factorization.

131272533639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729 (or 4726 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The spelling of 131272533639 in words is "one hundred thirty-one billion, two hundred seventy-two million, five hundred thirty-three thousand, six hundred thirty-nine".