111612413 has 8 divisors (see below), whose sum is σ = 122636640. Its totient is φ = 100734480.

The previous prime is 111612379. The next prime is 111612427. The reversal of 111612413 is 314216111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111612413 - 2⁶ = 111612349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111632413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34970 + ... + 38027.

It is an arithmetic number, because the mean of its divisors is an integer number (15329580).

Almost surely, 2^111612413 is an apocalyptic number.

It is an amenable number.

111612413 is a deficient number, since it is larger than the sum of its proper divisors (11024227).

111612413 is a wasteful number, since it uses less digits than its factorization.

111612413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73147.

The product of its digits is 144, while the sum is 20.

The square root of 111612413 is about 10564.6776098469. The cubic root of 111612413 is about 481.4717745927.

Adding to 111612413 its reverse (314216111), we get a palindrome (425828524).

The spelling of 111612413 in words is "one hundred eleven million, six hundred twelve thousand, four hundred thirteen".