111371690 has 16 divisors (see below), whose sum is σ = 202455720. Its totient is φ = 44107200.

The previous prime is 111371683. The next prime is 111371719. The reversal of 111371690 is 96173111.

It can be written as a sum of positive squares in 4 ways, for example, as 110019121 + 1352569 = 10489^2 + 1163^2 .

It is a super-2 number, since 2×111371690² = 24807306666912200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54125 + ... + 56144.

Almost surely, 2^111371690 is an apocalyptic number.

111371690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111371690 is a deficient number, since it is larger than the sum of its proper divisors (91084030).

111371690 is a wasteful number, since it uses less digits than its factorization.

111371690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110377.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 111371690 is about 10553.2786374662. The cubic root of 111371690 is about 481.1253831497.

The spelling of 111371690 in words is "one hundred eleven million, three hundred seventy-one thousand, six hundred ninety".