111554413 has 2 divisors, whose sum is σ = 111554414. Its totient is φ = 111554412.

The previous prime is 111554389. The next prime is 111554423. The reversal of 111554413 is 314455111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103184964 + 8369449 = 10158^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 111554413 - 2⁵ = 111554381 is a prime.

It is equal to p_6387001 and since 111554413 and 6387001 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111554423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55777206 + 55777207.

It is an arithmetic number, because the mean of its divisors is an integer number (55777207).

Almost surely, 2^111554413 is an apocalyptic number.

It is an amenable number.

111554413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111554413 is an equidigital number, since it uses as much as digits as its factorization.

111554413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 111554413 is about 10561.9322569310. The cubic root of 111554413 is about 481.3883603298.

The spelling of 111554413 in words is "one hundred eleven million, five hundred fifty-four thousand, four hundred thirteen".