111956749 has 8 divisors (see below), whose sum is σ = 113460480. Its totient is φ = 110458656.

The previous prime is 111956737. The next prime is 111956771. The reversal of 111956749 is 947659111.

It is a happy number.

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 111956749 - 2²³ = 103568141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111956729) 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, 51172 + ... + 53314.

It is an arithmetic number, because the mean of its divisors is an integer number (14182560).

Almost surely, 2^111956749 is an apocalyptic number.

It is an amenable number.

111956749 is a deficient number, since it is larger than the sum of its proper divisors (1503731).

111956749 is an equidigital number, since it uses as much as digits as its factorization.

111956749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its digits is 68040, while the sum is 43.

The square root of 111956749 is about 10580.9616292660. The cubic root of 111956749 is about 481.9663965945.

The spelling of 111956749 in words is "one hundred eleven million, nine hundred fifty-six thousand, seven hundred forty-nine".