111255913 has 2 divisors, whose sum is σ = 111255914. Its totient is φ = 111255912.

The previous prime is 111255889. The next prime is 111255923. The reversal of 111255913 is 319552111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94633984 + 16621929 = 9728^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 111255913 - 2⁹ = 111255401 is a prime.

It is not a weakly prime, because it can be changed into another prime (111255923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55627956 + 55627957.

It is an arithmetic number, because the mean of its divisors is an integer number (55627957).

Almost surely, 2^111255913 is an apocalyptic number.

It is an amenable number.

111255913 is a deficient number, since it is larger than the sum of its proper divisors (1).

111255913 is an equidigital number, since it uses as much as digits as its factorization.

111255913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 28.

The square root of 111255913 is about 10547.7918542224. The cubic root of 111255913 is about 480.9586065753.

The spelling of 111255913 in words is "one hundred eleven million, two hundred fifty-five thousand, nine hundred thirteen".