113012257 has 2 divisors, whose sum is σ = 113012258. Its totient is φ = 113012256.

The previous prime is 113012231. The next prime is 113012269. The reversal of 113012257 is 752210311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101425041 + 11587216 = 10071^2 + 3404^2 .

It is an emirp because it is prime and its reverse (752210311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113012257 is a prime.

It is not a weakly prime, because it can be changed into another prime (113012297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56506128 + 56506129.

It is an arithmetic number, because the mean of its divisors is an integer number (56506129).

Almost surely, 2^113012257 is an apocalyptic number.

It is an amenable number.

113012257 is a deficient number, since it is larger than the sum of its proper divisors (1).

113012257 is an equidigital number, since it uses as much as digits as its factorization.

113012257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 113012257 is about 10630.7223178860. The cubic root of 113012257 is about 483.4762921814.

Adding to 113012257 its reverse (752210311), we get a palindrome (865222568).

The spelling of 113012257 in words is "one hundred thirteen million, twelve thousand, two hundred fifty-seven".