111355613 has 2 divisors, whose sum is σ = 111355614. Its totient is φ = 111355612.

The previous prime is 111355609. The next prime is 111355663. The reversal of 111355613 is 316553111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62047129 + 49308484 = 7877^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 111355613 - 2² = 111355609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111355603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55677806 + 55677807.

It is an arithmetic number, because the mean of its divisors is an integer number (55677807).

Almost surely, 2^111355613 is an apocalyptic number.

It is an amenable number.

111355613 is a deficient number, since it is larger than the sum of its proper divisors (1).

111355613 is an equidigital number, since it uses as much as digits as its factorization.

111355613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

The square root of 111355613 is about 10552.5169035638. The cubic root of 111355613 is about 481.1022311710.

The spelling of 111355613 in words is "one hundred eleven million, three hundred fifty-five thousand, six hundred thirteen".