111941690 has 48 divisors (see below), whose sum is σ = 240807168. Its totient is φ = 36699168.

The previous prime is 111941681. The next prime is 111941701. The reversal of 111941690 is 96149111.

It is a super-2 number, since 2×111941690² = 25061883920112200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35519 + ... + 38541.

It is an arithmetic number, because the mean of its divisors is an integer number (5016816).

Almost surely, 2^111941690 is an apocalyptic number.

111941690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111941690 is an abundant number, since it is smaller than the sum of its proper divisors (128865478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111941690 is a wasteful number, since it uses less digits than its factorization.

111941690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 111941690 is about 10580.2499970464. The cubic root of 111941690 is about 481.9447862926.

The spelling of 111941690 in words is "one hundred eleven million, nine hundred forty-one thousand, six hundred ninety".