111965490 has 320 divisors, whose sum is σ = 390297600. Its totient is φ = 22861440.

The previous prime is 111965489. The next prime is 111965501. The reversal of 111965490 is 94569111.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3611775 + ... + 3611805.

It is an arithmetic number, because the mean of its divisors is an integer number (1219680).

Almost surely, 2^111965490 is an apocalyptic number.

111965490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111965490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195148800).

111965490 is an abundant number, since it is smaller than the sum of its proper divisors (278332110).

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

111965490 is a wasteful number, since it uses less digits than its factorization.

111965490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 111965490 is about 10581.3746743984. The cubic root of 111965490 is about 481.9789394102.

The spelling of 111965490 in words is "one hundred eleven million, nine hundred sixty-five thousand, four hundred ninety".