112291919 has 16 divisors (see below), whose sum is σ = 125856000. Its totient is φ = 99563904.

The previous prime is 112291897. The next prime is 112291931. The reversal of 112291919 is 919192211.

It is a cyclic number.

It is not a de Polignac number, because 112291919 - 2¹⁶ = 112226383 is a prime.

It is a super-2 number, since 2×112291919² = 25218950145405122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112291979) 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, 63404 + ... + 65150.

It is an arithmetic number, because the mean of its divisors is an integer number (7866000).

Almost surely, 2^112291919 is an apocalyptic number.

112291919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

112291919 is a deficient number, since it is larger than the sum of its proper divisors (13564081).

112291919 is a wasteful number, since it uses less digits than its factorization.

112291919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982.

The product of its digits is 2916, while the sum is 35.

The square root of 112291919 is about 10596.7881454712. The cubic root of 112291919 is about 482.4468789899.

The spelling of 112291919 in words is "one hundred twelve million, two hundred ninety-one thousand, nine hundred nineteen".