111398453 has 16 divisors (see below), whose sum is σ = 120967680. Its totient is φ = 102301056.

The previous prime is 111398437. The next prime is 111398471. The reversal of 111398453 is 354893111.

It is not a de Polignac number, because 111398453 - 2⁴ = 111398437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111398473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66401 + ... + 68057.

It is an arithmetic number, because the mean of its divisors is an integer number (7560480).

Almost surely, 2^111398453 is an apocalyptic number.

It is an amenable number.

111398453 is a deficient number, since it is larger than the sum of its proper divisors (9569227).

111398453 is a wasteful number, since it uses less digits than its factorization.

111398453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its digits is 12960, while the sum is 35.

The square root of 111398453 is about 10554.5465558687. The cubic root of 111398453 is about 481.1639187577.

The spelling of 111398453 in words is "one hundred eleven million, three hundred ninety-eight thousand, four hundred fifty-three".