113355521 has 2 divisors, whose sum is σ = 113355522. Its totient is φ = 113355520.

The previous prime is 113355481. The next prime is 113355527. The reversal of 113355521 is 125553311.

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., 90935296 + 22420225 = 9536^2 + 4735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113355521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113355527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56677760 + 56677761.

It is an arithmetic number, because the mean of its divisors is an integer number (56677761).

Almost surely, 2^113355521 is an apocalyptic number.

It is an amenable number.

113355521 is a deficient number, since it is larger than the sum of its proper divisors (1).

113355521 is an equidigital number, since it uses as much as digits as its factorization.

113355521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 26.

The square root of 113355521 is about 10646.8549816366. The cubic root of 113355521 is about 483.9653018519.

The spelling of 113355521 in words is "one hundred thirteen million, three hundred fifty-five thousand, five hundred twenty-one".