111572413 has 2 divisors, whose sum is σ = 111572414. Its totient is φ = 111572412.

The previous prime is 111572399. The next prime is 111572429. The reversal of 111572413 is 314275111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58033924 + 53538489 = 7618^2 + 7317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111572413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111572443) 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, 55786206 + 55786207.

It is an arithmetic number, because the mean of its divisors is an integer number (55786207).

Almost surely, 2^111572413 is an apocalyptic number.

It is an amenable number.

111572413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111572413 is an equidigital number, since it uses as much as digits as its factorization.

111572413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 25.

The square root of 111572413 is about 10562.7843393681. The cubic root of 111572413 is about 481.4142506083.

The spelling of 111572413 in words is "one hundred eleven million, five hundred seventy-two thousand, four hundred thirteen".