111875401 has 16 divisors (see below), whose sum is σ = 129427200. Its totient is φ = 95634000.

The previous prime is 111875353. The next prime is 111875437. The reversal of 111875401 is 104578111.

It is not a de Polignac number, because 111875401 - 2⁷ = 111875273 is a prime.

It is a super-2 number, since 2×111875401² = 25032210697821602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111875401.

It is not an unprimeable number, because it can be changed into a prime (111875501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27126 + ... + 30976.

It is an arithmetic number, because the mean of its divisors is an integer number (8089200).

Almost surely, 2^111875401 is an apocalyptic number.

111875401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111875401 is a deficient number, since it is larger than the sum of its proper divisors (17551799).

111875401 is a wasteful number, since it uses less digits than its factorization.

111875401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 1120, while the sum is 28.

The square root of 111875401 is about 10577.1168566864. The cubic root of 111875401 is about 481.8496357245.

The spelling of 111875401 in words is "one hundred eleven million, eight hundred seventy-five thousand, four hundred one".