131622455361 has 4 divisors (see below), whose sum is σ = 175496607152. Its totient is φ = 87748303572.

The previous prime is 131622455339. The next prime is 131622455387. The reversal of 131622455361 is 163554226131.

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 not a de Polignac number, because 131622455361 - 2¹⁴ = 131622438977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131622455311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21937075891 + ... + 21937075896.

It is an arithmetic number, because the mean of its divisors is an integer number (43874151788).

Almost surely, 2^131622455361 is an apocalyptic number.

It is an amenable number.

131622455361 is a deficient number, since it is larger than the sum of its proper divisors (43874151791).

131622455361 is an equidigital number, since it uses as much as digits as its factorization.

131622455361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43874151790.

The product of its digits is 129600, while the sum is 39.

The spelling of 131622455361 in words is "one hundred thirty-one billion, six hundred twenty-two million, four hundred fifty-five thousand, three hundred sixty-one".