1136376261 has 6 divisors (see below), whose sum is σ = 1641432390. Its totient is φ = 757584168.

The previous prime is 1136376257. The next prime is 1136376287. The reversal of 1136376261 is 1626736311.

1136376261 is a `hidden beast` number, since 1 + 13 + 637 + 6 + 2 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 757295361 + 379080900 = 27519^2 + 19470^2 .

It is not a de Polignac number, because 1136376261 - 2² = 1136376257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136376961) 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, 63132006 + ... + 63132023.

It is an arithmetic number, because the mean of its divisors is an integer number (273572065).

Almost surely, 2^1136376261 is an apocalyptic number.

It is an amenable number.

1136376261 is a deficient number, since it is larger than the sum of its proper divisors (505056129).

1136376261 is a wasteful number, since it uses less digits than its factorization.

1136376261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126264035 (or 126264032 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1136376261 is about 33710.1803762602. The cubic root of 1136376261 is about 1043.5358756329.

The spelling of 1136376261 in words is "one billion, one hundred thirty-six million, three hundred seventy-six thousand, two hundred sixty-one".