111849279 has 4 divisors (see below), whose sum is σ = 149132376. Its totient is φ = 74566184.

The previous prime is 111849263. The next prime is 111849293. The reversal of 111849279 is 972948111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111849279 - 2⁴ = 111849263 is a prime.

It is a super-2 number, since 2×111849279² = 25020522425639682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111849279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111849079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18641544 + ... + 18641549.

It is an arithmetic number, because the mean of its divisors is an integer number (37283094).

Almost surely, 2^111849279 is an apocalyptic number.

111849279 is a deficient number, since it is larger than the sum of its proper divisors (37283097).

111849279 is an equidigital number, since it uses as much as digits as its factorization.

111849279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37283096.

The product of its digits is 36288, while the sum is 42.

The square root of 111849279 is about 10575.8819490386. The cubic root of 111849279 is about 481.8121301429.

The spelling of 111849279 in words is "one hundred eleven million, eight hundred forty-nine thousand, two hundred seventy-nine".