1137691013 has 4 divisors (see below), whose sum is σ = 1137835020. Its totient is φ = 1137547008.

The previous prime is 1137690991. The next prime is 1137691031. The reversal of 1137691013 is 3101967311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654438724 + 483252289 = 25582^2 + 21983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137691013 - 2¹⁶ = 1137625477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137691073) 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, 59420 + ... + 76197.

It is an arithmetic number, because the mean of its divisors is an integer number (284458755).

Almost surely, 2^1137691013 is an apocalyptic number.

It is an amenable number.

1137691013 is a deficient number, since it is larger than the sum of its proper divisors (144007).

1137691013 is an equidigital number, since it uses as much as digits as its factorization.

1137691013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144006.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1137691013 is about 33729.6755543246. The cubic root of 1137691013 is about 1043.9381667136.

The spelling of 1137691013 in words is "one billion, one hundred thirty-seven million, six hundred ninety-one thousand, thirteen".