2125164631 has 8 divisors (see below), whose sum is σ = 2199870720. Its totient is φ = 2050553568.

The previous prime is 2125164623. The next prime is 2125164667. The reversal of 2125164631 is 1364615212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125164631 - 2³ = 2125164623 is a prime.

It is a super-2 number, since 2×2125164631² = 9032649417706732322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2125164593 and 2125164602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125164131) 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 7 ways as a sum of consecutive naturals, for example, 23370 + ... + 69256.

It is an arithmetic number, because the mean of its divisors is an integer number (274983840).

Almost surely, 2^2125164631 is an apocalyptic number.

2125164631 is a deficient number, since it is larger than the sum of its proper divisors (74706089).

2125164631 is a wasteful number, since it uses less digits than its factorization.

2125164631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47513.

The product of its digits is 8640, while the sum is 31.

The square root of 2125164631 is about 46099.5079257903. The cubic root of 2125164631 is about 1285.6739954647.

Adding to 2125164631 its reverse (1364615212), we get a palindrome (3489779843).

The spelling of 2125164631 in words is "two billion, one hundred twenty-five million, one hundred sixty-four thousand, six hundred thirty-one".