2261131624 has 16 divisors (see below), whose sum is σ = 4385816100. Its totient is φ = 1091580672.

The previous prime is 2261131603. The next prime is 2261131627. The reversal of 2261131624 is 4261311622.

It can be written as a sum of positive squares in 2 ways, for example, as 1955231524 + 305900100 = 44218^2 + 17490^2 .

It is a super-2 number, since 2×2261131624² = 10225432442105754752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261131592 and 2261131601.

It is not an unprimeable number, because it can be changed into a prime (2261131627) 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, 4872897 + ... + 4873360.

Almost surely, 2^2261131624 is an apocalyptic number.

It is an amenable number.

2261131624 is a deficient number, since it is larger than the sum of its proper divisors (2124684476).

2261131624 is a wasteful number, since it uses less digits than its factorization.

2261131624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9746292 (or 9746288 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2261131624 is about 47551.3577513829. The cubic root of 2261131624 is about 1312.5281140947.

The spelling of 2261131624 in words is "two billion, two hundred sixty-one million, one hundred thirty-one thousand, six hundred twenty-four".