131334217637 has 4 divisors (see below), whose sum is σ = 150096248736. Its totient is φ = 112572186540.

The previous prime is 131334217591. The next prime is 131334217639. The reversal of 131334217637 is 736712433131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131334217637 - 2²⁴ = 131317440421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131334217594 and 131334217603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131334217639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9381015539 + ... + 9381015552.

It is an arithmetic number, because the mean of its divisors is an integer number (37524062184).

Almost surely, 2^131334217637 is an apocalyptic number.

It is an amenable number.

131334217637 is a deficient number, since it is larger than the sum of its proper divisors (18762031099).

131334217637 is an equidigital number, since it uses as much as digits as its factorization.

131334217637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18762031098.

The product of its digits is 190512, while the sum is 41.

The spelling of 131334217637 in words is "one hundred thirty-one billion, three hundred thirty-four million, two hundred seventeen thousand, six hundred thirty-seven".