111078945 has 24 divisors (see below), whose sum is σ = 199670016. Its totient is φ = 59241456.

The previous prime is 111078943. The next prime is 111078949. The reversal of 111078945 is 549870111.

It is not a de Polignac number, because 111078945 - 2¹ = 111078943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111078943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44497 + ... + 46926.

It is an arithmetic number, because the mean of its divisors is an integer number (8319584).

Almost surely, 2^111078945 is an apocalyptic number.

111078945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111078945 is a deficient number, since it is larger than the sum of its proper divisors (88591071).

111078945 is an frugal number, since it uses more digits than its factorization.

111078945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91443 (or 91431 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 111078945 is about 10539.3996508340. The cubic root of 111078945 is about 480.7034607318.

The spelling of 111078945 in words is "one hundred eleven million, seventy-eight thousand, nine hundred forty-five".