113142257 has 2 divisors, whose sum is σ = 113142258. Its totient is φ = 113142256.

The previous prime is 113142233. The next prime is 113142277. The reversal of 113142257 is 752241311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 52940176 = 7759^2 + 7276^2 .

It is a cyclic number.

It is not a de Polignac number, because 113142257 - 2⁶ = 113142193 is a prime.

It is not a weakly prime, because it can be changed into another prime (113142217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56571128 + 56571129.

It is an arithmetic number, because the mean of its divisors is an integer number (56571129).

Almost surely, 2^113142257 is an apocalyptic number.

It is an amenable number.

113142257 is a deficient number, since it is larger than the sum of its proper divisors (1).

113142257 is an equidigital number, since it uses as much as digits as its factorization.

113142257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 113142257 is about 10636.8349145787. The cubic root of 113142257 is about 483.6616049229.

Adding to 113142257 its reverse (752241311), we get a palindrome (865383568).

The spelling of 113142257 in words is "one hundred thirteen million, one hundred forty-two thousand, two hundred fifty-seven".