131164533337 has 4 divisors (see below), whose sum is σ = 131369158836. Its totient is φ = 130959907840.

The previous prime is 131164533301. The next prime is 131164533341. The reversal of 131164533337 is 733335461131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79876325376 + 51288207961 = 282624^2 + 226469^2 .

It is a cyclic number.

It is not a de Polignac number, because 131164533337 - 2²⁷ = 131030315609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131164533337.

It is not an unprimeable number, because it can be changed into a prime (131164533397) 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, 102311788 + ... + 102313069.

It is an arithmetic number, because the mean of its divisors is an integer number (32842289709).

Almost surely, 2^131164533337 is an apocalyptic number.

It is an amenable number.

131164533337 is a deficient number, since it is larger than the sum of its proper divisors (204625499).

131164533337 is an equidigital number, since it uses as much as digits as its factorization.

131164533337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204625498.

The product of its digits is 204120, while the sum is 40.

Adding to 131164533337 its reverse (733335461131), we get a palindrome (864499994468).

The spelling of 131164533337 in words is "one hundred thirty-one billion, one hundred sixty-four million, five hundred thirty-three thousand, three hundred thirty-seven".