113291137 has 2 divisors, whose sum is σ = 113291138. Its totient is φ = 113291136.

The previous prime is 113291117. The next prime is 113291141. The reversal of 113291137 is 731192311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95726656 + 17564481 = 9784^2 + 4191^2 .

It is a cyclic number.

It is not a de Polignac number, because 113291137 - 2¹¹ = 113289089 is a prime.

It is not a weakly prime, because it can be changed into another prime (113291117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56645568 + 56645569.

It is an arithmetic number, because the mean of its divisors is an integer number (56645569).

Almost surely, 2^113291137 is an apocalyptic number.

It is an amenable number.

113291137 is a deficient number, since it is larger than the sum of its proper divisors (1).

113291137 is an equidigital number, since it uses as much as digits as its factorization.

113291137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 28.

The square root of 113291137 is about 10643.8309362748. The cubic root of 113291137 is about 483.8736564901.

The spelling of 113291137 in words is "one hundred thirteen million, two hundred ninety-one thousand, one hundred thirty-seven".