111090613 has 4 divisors (see below), whose sum is σ = 114093100. Its totient is φ = 108088128.

The previous prime is 111090611. The next prime is 111090641. The reversal of 111090613 is 316090111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56655729 + 54434884 = 7527^2 + 7378^2 .

It is a cyclic number.

It is not a de Polignac number, because 111090613 - 2¹ = 111090611 is a prime.

It is a super-2 number, since 2×111090613² = 24682248593431538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111090611) 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 in 3 ways as a sum of consecutive naturals, for example, 1501188 + ... + 1501261.

It is an arithmetic number, because the mean of its divisors is an integer number (28523275).

Almost surely, 2^111090613 is an apocalyptic number.

It is an amenable number.

111090613 is a deficient number, since it is larger than the sum of its proper divisors (3002487).

111090613 is an equidigital number, since it uses as much as digits as its factorization.

111090613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002486.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 111090613 is about 10539.9531782641. The cubic root of 111090613 is about 480.7202915590.

The spelling of 111090613 in words is "one hundred eleven million, ninety thousand, six hundred thirteen".