111420164 has 6 divisors (see below), whose sum is σ = 194985294. Its totient is φ = 55710080.

The previous prime is 111420157. The next prime is 111420173. The reversal of 111420164 is 461024111.

It can be written as a sum of positive squares in only one way, i.e., 75516100 + 35904064 = 8690^2 + 5992^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13927517 + ... + 13927524.

It is an arithmetic number, because the mean of its divisors is an integer number (32497549).

Almost surely, 2^111420164 is an apocalyptic number.

It is an amenable number.

111420164 is a deficient number, since it is larger than the sum of its proper divisors (83565130).

111420164 is a wasteful number, since it uses less digits than its factorization.

111420164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27855045 (or 27855043 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 111420164 is about 10555.5750198651. The cubic root of 111420164 is about 481.1951755390.

Adding to 111420164 its reverse (461024111), we get a palindrome (572444275).

The spelling of 111420164 in words is "one hundred eleven million, four hundred twenty thousand, one hundred sixty-four".