111608351 has 4 divisors (see below), whose sum is σ = 116460912. Its totient is φ = 106755792.

The previous prime is 111608323. The next prime is 111608359. The reversal of 111608351 is 153806111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153806111 = 29 ⋅5303659.

It is a cyclic number.

It is not a de Polignac number, because 111608351 - 2¹⁴ = 111591967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111608351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111608359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426246 + ... + 2426291.

It is an arithmetic number, because the mean of its divisors is an integer number (29115228).

Almost surely, 2^111608351 is an apocalyptic number.

111608351 is a deficient number, since it is larger than the sum of its proper divisors (4852561).

111608351 is an equidigital number, since it uses as much as digits as its factorization.

111608351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852560.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 111608351 is about 10564.4853637080. The cubic root of 111608351 is about 481.4659336592.

The spelling of 111608351 in words is "one hundred eleven million, six hundred eight thousand, three hundred fifty-one".