111644134 has 32 divisors (see below), whose sum is σ = 203466816. Its totient is φ = 44851200.

The previous prime is 111644123. The next prime is 111644147. The reversal of 111644134 is 431446111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111644099 and 111644108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68934 + ... + 70534.

It is an arithmetic number, because the mean of its divisors is an integer number (6358338).

Almost surely, 2^111644134 is an apocalyptic number.

111644134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111644134 is a deficient number, since it is larger than the sum of its proper divisors (91822682).

111644134 is a wasteful number, since it uses less digits than its factorization.

111644134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its digits is 1152, while the sum is 25.

The square root of 111644134 is about 10566.1787794831. The cubic root of 111644134 is about 481.5173827801.

The spelling of 111644134 in words is "one hundred eleven million, six hundred forty-four thousand, one hundred thirty-four".