111357998 has 4 divisors (see below), whose sum is σ = 167037000. Its totient is φ = 55678998.

The previous prime is 111357959. The next prime is 111358061. The reversal of 111357998 is 899753111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27839498 + ... + 27839501.

It is an arithmetic number, because the mean of its divisors is an integer number (41759250).

Almost surely, 2^111357998 is an apocalyptic number.

111357998 is a deficient number, since it is larger than the sum of its proper divisors (55679002).

111357998 is an equidigital number, since it uses as much as digits as its factorization.

111357998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55679001.

The product of its digits is 68040, while the sum is 44.

The square root of 111357998 is about 10552.6299091743. The cubic root of 111357998 is about 481.1056658747.

The spelling of 111357998 in words is "one hundred eleven million, three hundred fifty-seven thousand, nine hundred ninety-eight".