111287394 has 24 divisors (see below), whose sum is σ = 241328880. Its totient is φ = 37064088.

The previous prime is 111287387. The next prime is 111287401. The reversal of 111287394 is 493782111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111287387) and next prime (111287401).

It is a super-2 number, since 2×111287394² = 24769768126622472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29677 + ... + 33215.

It is an arithmetic number, because the mean of its divisors is an integer number (10055370).

Almost surely, 2^111287394 is an apocalyptic number.

111287394 is an abundant number, since it is smaller than the sum of its proper divisors (130041486).

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

111287394 is a wasteful number, since it uses less digits than its factorization.

111287394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294 (or 5291 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 111287394 is about 10549.2840515364. The cubic root of 111287394 is about 481.0039663517.

The spelling of 111287394 in words is "one hundred eleven million, two hundred eighty-seven thousand, three hundred ninety-four".