111778345 has 8 divisors (see below), whose sum is σ = 153296064. Its totient is φ = 76647984.

The previous prime is 111778339. The next prime is 111778399. The reversal of 111778345 is 543877111.

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

It is not a de Polignac number, because 111778345 - 2⁷ = 111778217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1596799 + ... + 1596868.

It is an arithmetic number, because the mean of its divisors is an integer number (19162008).

Almost surely, 2^111778345 is an apocalyptic number.

It is an amenable number.

111778345 is a deficient number, since it is larger than the sum of its proper divisors (41517719).

111778345 is an equidigital number, since it uses as much as digits as its factorization.

111778345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193679.

The product of its digits is 23520, while the sum is 37.

The square root of 111778345 is about 10572.5278434251. The cubic root of 111778345 is about 481.7102546863.

The spelling of 111778345 in words is "one hundred eleven million, seven hundred seventy-eight thousand, three hundred forty-five".