2131622497 has 4 divisors (see below), whose sum is σ = 2224301760. Its totient is φ = 2038943236.

The previous prime is 2131622461. The next prime is 2131622539. The reversal of 2131622497 is 7942261312.

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 a de Polignac number, because none of the positive numbers 2^k-2131622497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131622417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46339597 + ... + 46339642.

It is an arithmetic number, because the mean of its divisors is an integer number (556075440).

Almost surely, 2^2131622497 is an apocalyptic number.

It is an amenable number.

2131622497 is a deficient number, since it is larger than the sum of its proper divisors (92679263).

2131622497 is an equidigital number, since it uses as much as digits as its factorization.

2131622497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92679262.

The product of its digits is 36288, while the sum is 37.

The square root of 2131622497 is about 46169.4974739817. The cubic root of 2131622497 is about 1286.9749636262.

The spelling of 2131622497 in words is "two billion, one hundred thirty-one million, six hundred twenty-two thousand, four hundred ninety-seven".