2261129751 has 12 divisors (see below), whose sum is σ = 3437975320. Its totient is φ = 1428081840.

The previous prime is 2261129743. The next prime is 2261129753. The reversal of 2261129751 is 1579211622.

It is not a de Polignac number, because 2261129751 - 2³ = 2261129743 is a prime.

It is a super-2 number, since 2×2261129751² = 10225415501714644002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261129753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6611320 + ... + 6611661.

Almost surely, 2^2261129751 is an apocalyptic number.

2261129751 is a deficient number, since it is larger than the sum of its proper divisors (1176845569).

2261129751 is a wasteful number, since it uses less digits than its factorization.

2261129751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13223006 (or 13223003 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 2261129751 is about 47551.3380568833. The cubic root of 2261129751 is about 1312.5277516853.

The spelling of 2261129751 in words is "two billion, two hundred sixty-one million, one hundred twenty-nine thousand, seven hundred fifty-one".