113331553 has 2 divisors, whose sum is σ = 113331554. Its totient is φ = 113331552.

The previous prime is 113331541. The next prime is 113331563. The reversal of 113331553 is 355133311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82228624 + 31102929 = 9068^2 + 5577^2 .

It is a cyclic number.

It is not a de Polignac number, because 113331553 - 2⁹ = 113331041 is a prime.

It is not a weakly prime, because it can be changed into another prime (113331563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56665776 + 56665777.

It is an arithmetic number, because the mean of its divisors is an integer number (56665777).

Almost surely, 2^113331553 is an apocalyptic number.

It is an amenable number.

113331553 is a deficient number, since it is larger than the sum of its proper divisors (1).

113331553 is an equidigital number, since it uses as much as digits as its factorization.

113331553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2025, while the sum is 25.

The square root of 113331553 is about 10645.7293315207. The cubic root of 113331553 is about 483.9311894185.

Adding to 113331553 its reverse (355133311), we get a palindrome (468464864).

The spelling of 113331553 in words is "one hundred thirteen million, three hundred thirty-one thousand, five hundred fifty-three".