111427992 has 48 divisors (see below), whose sum is σ = 325001040. Its totient is φ = 34285248.

The previous prime is 111427969. The next prime is 111427993. The reversal of 111427992 is 299724111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111427993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58588 + ... + 60459.

It is an arithmetic number, because the mean of its divisors is an integer number (6770855).

Almost surely, 2^111427992 is an apocalyptic number.

111427992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111427992 is an abundant number, since it is smaller than the sum of its proper divisors (213573048).

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

111427992 is a wasteful number, since it uses less digits than its factorization.

111427992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119072 (or 119065 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 111427992 is about 10555.9458126688. The cubic root of 111427992 is about 481.2064443181.

The spelling of 111427992 in words is "one hundred eleven million, four hundred twenty-seven thousand, nine hundred ninety-two".