111159420 has 48 divisors (see below), whose sum is σ = 313074720. Its totient is φ = 29468416.

The previous prime is 111159331. The next prime is 111159421. The reversal of 111159420 is 24951111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111159421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5026 + ... + 15734.

It is an arithmetic number, because the mean of its divisors is an integer number (6522390).

Almost surely, 2^111159420 is an apocalyptic number.

111159420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111159420 is an abundant number, since it is smaller than the sum of its proper divisors (201915300).

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

111159420 is a wasteful number, since it uses less digits than its factorization.

111159420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894 (or 10892 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 111159420 is about 10543.2167766768. The cubic root of 111159420 is about 480.8195201483.

The spelling of 111159420 in words is "one hundred eleven million, one hundred fifty-nine thousand, four hundred twenty".