111404887 has 8 divisors (see below), whose sum is σ = 123826320. Its totient is φ = 99365760.

The previous prime is 111404861. The next prime is 111404897. The reversal of 111404887 is 788404111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111404887 - 2²³ = 103016279 is a prime.

It is a super-2 number, since 2×111404887² = 24822097694965538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111404807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94962 + ... + 96127.

It is an arithmetic number, because the mean of its divisors is an integer number (15478290).

Almost surely, 2^111404887 is an apocalyptic number.

111404887 is a deficient number, since it is larger than the sum of its proper divisors (12421433).

111404887 is a wasteful number, since it uses less digits than its factorization.

111404887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191153.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 111404887 is about 10554.8513490243. The cubic root of 111404887 is about 481.1731820493.

Adding to 111404887 its reverse (788404111), we get a palindrome (899808998).

The spelling of 111404887 in words is "one hundred eleven million, four hundred four thousand, eight hundred eighty-seven".