113603137 has 2 divisors, whose sum is σ = 113603138. Its totient is φ = 113603136.

The previous prime is 113603131. The next prime is 113603173. The reversal of 113603137 is 731306311.

Together with next prime (113603173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84345856 + 29257281 = 9184^2 + 5409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113603137 is a prime.

It is not a weakly prime, because it can be changed into another prime (113603131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56801568 + 56801569.

It is an arithmetic number, because the mean of its divisors is an integer number (56801569).

Almost surely, 2^113603137 is an apocalyptic number.

It is an amenable number.

113603137 is a deficient number, since it is larger than the sum of its proper divisors (1).

113603137 is an equidigital number, since it uses as much as digits as its factorization.

113603137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 113603137 is about 10658.4772364536. The cubic root of 113603137 is about 484.3174399698.

Adding to 113603137 its reverse (731306311), we get a palindrome (844909448).

The spelling of 113603137 in words is "one hundred thirteen million, six hundred three thousand, one hundred thirty-seven".