111618377 has 8 divisors (see below), whose sum is σ = 120315720. Its totient is φ = 102936960.

The previous prime is 111618343. The next prime is 111618391. The reversal of 111618377 is 773816111.

It can be written as a sum of positive squares in 4 ways, for example, as 39300361 + 72318016 = 6269^2 + 8504^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111618377 - 2²⁶ = 44509513 is a prime.

It is a super-2 number, since 2×111618377² = 24917324168228258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111618337) 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 7 ways as a sum of consecutive naturals, for example, 13427 + ... + 20087.

It is an arithmetic number, because the mean of its divisors is an integer number (15039465).

Almost surely, 2^111618377 is an apocalyptic number.

It is an amenable number.

111618377 is a deficient number, since it is larger than the sum of its proper divisors (8697343).

111618377 is a wasteful number, since it uses less digits than its factorization.

111618377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its digits is 7056, while the sum is 35.

The square root of 111618377 is about 10564.9598674108. The cubic root of 111618377 is about 481.4803502414.

The spelling of 111618377 in words is "one hundred eleven million, six hundred eighteen thousand, three hundred seventy-seven".