111670545 has 16 divisors (see below), whose sum is σ = 204197760. Its totient is φ = 51049344.

The previous prime is 111670469. The next prime is 111670547. The reversal of 111670545 is 545076111.

It is not a de Polignac number, because 111670545 - 2¹⁶ = 111605009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111670547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531660 + ... + 531869.

It is an arithmetic number, because the mean of its divisors is an integer number (12762360).

Almost surely, 2^111670545 is an apocalyptic number.

111670545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111670545 is a deficient number, since it is larger than the sum of its proper divisors (92527215).

111670545 is a wasteful number, since it uses less digits than its factorization.

111670545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063544.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 111670545 is about 10567.4284951449. The cubic root of 111670545 is about 481.5553497036. Note that the first 3 decimals are identical.

The spelling of 111670545 in words is "one hundred eleven million, six hundred seventy thousand, five hundred forty-five".