2261260539 has 6 divisors (see below), whose sum is σ = 3266265236. Its totient is φ = 1507507020.

The previous prime is 2261260523. The next prime is 2261260553. The reversal of 2261260539 is 9350621622.

2261260539 is a `hidden beast` number, since 2 + 2 + 6 + 12 + 605 + 39 = 666.

It is not a de Polignac number, because 2261260539 - 2⁴ = 2261260523 is a prime.

It is a super-2 number, since 2×2261260539² = 10226598450477141042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261260579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125625577 + ... + 125625594.

Almost surely, 2^2261260539 is an apocalyptic number.

2261260539 is a deficient number, since it is larger than the sum of its proper divisors (1005004697).

2261260539 is a wasteful number, since it uses less digits than its factorization.

2261260539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251251177 (or 251251174 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2261260539 is about 47552.7132664373. The cubic root of 2261260539 is about 1312.5530575558.

The spelling of 2261260539 in words is "two billion, two hundred sixty-one million, two hundred sixty thousand, five hundred thirty-nine".