111987039 has 8 divisors (see below), whose sum is σ = 152133552. Its totient is φ = 73249280.

The previous prime is 111987019. The next prime is 111987047. The reversal of 111987039 is 930789111.

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 111987039 - 2⁸ = 111986783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111986988 and 111987006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111987019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352002 + ... + 352319.

It is an arithmetic number, because the mean of its divisors is an integer number (19016694).

Almost surely, 2^111987039 is an apocalyptic number.

111987039 is a deficient number, since it is larger than the sum of its proper divisors (40146513).

111987039 is an equidigital number, since it uses as much as digits as its factorization.

111987039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704377.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 111987039 is about 10582.3928768497. The cubic root of 111987039 is about 482.0098581571.

The spelling of 111987039 in words is "one hundred eleven million, nine hundred eighty-seven thousand, thirty-nine".