111890065 has 8 divisors (see below), whose sum is σ = 153449280. Its totient is φ = 76724592.

The previous prime is 111890063. The next prime is 111890071. The reversal of 111890065 is 560098111.

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

It is not a de Polignac number, because 111890065 - 2¹ = 111890063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111890063) 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, 1598395 + ... + 1598464.

It is an arithmetic number, because the mean of its divisors is an integer number (19181160).

Almost surely, 2^111890065 is an apocalyptic number.

It is an amenable number.

111890065 is a deficient number, since it is larger than the sum of its proper divisors (41559215).

111890065 is an equidigital number, since it uses as much as digits as its factorization.

111890065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196871.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 111890065 is about 10577.8100285456. The cubic root of 111890065 is about 481.8706875205.

The spelling of 111890065 in words is "one hundred eleven million, eight hundred ninety thousand, sixty-five".