111738945 has 32 divisors (see below), whose sum is σ = 187794432. Its totient is φ = 56624832.

The previous prime is 111738937. The next prime is 111738959. The reversal of 111738945 is 549837111.

It is not a de Polignac number, because 111738945 - 2³ = 111738937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55242 + ... + 57228.

It is an arithmetic number, because the mean of its divisors is an integer number (5868576).

Almost surely, 2^111738945 is an apocalyptic number.

111738945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111738945 is a deficient number, since it is larger than the sum of its proper divisors (76055487).

111738945 is a wasteful number, since it uses less digits than its factorization.

111738945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its digits is 30240, while the sum is 39.

The square root of 111738945 is about 10570.6643594431. The cubic root of 111738945 is about 481.6536497615.

The spelling of 111738945 in words is "one hundred eleven million, seven hundred thirty-eight thousand, nine hundred forty-five".