111939449 has 8 divisors (see below), whose sum is σ = 118493760. Its totient is φ = 105564816.

The previous prime is 111939409. The next prime is 111939479. The reversal of 111939449 is 944939111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111939449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111939409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43637 + ... + 46130.

It is an arithmetic number, because the mean of its divisors is an integer number (14811720).

Almost surely, 2^111939449 is an apocalyptic number.

It is an amenable number.

111939449 is a deficient number, since it is larger than the sum of its proper divisors (6554311).

111939449 is an equidigital number, since it uses as much as digits as its factorization.

111939449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89839.

The product of its digits is 34992, while the sum is 41.

The square root of 111939449 is about 10580.1440916464. The cubic root of 111939449 is about 481.9415701972.

The spelling of 111939449 in words is "one hundred eleven million, nine hundred thirty-nine thousand, four hundred forty-nine".