1118457 has 12 divisors (see below), whose sum is σ = 1628224. Its totient is φ = 739800.

The previous prime is 1118441. The next prime is 1118479. The reversal of 1118457 is 7548111.

It is not a de Polignac number, because 1118457 - 2⁴ = 1118441 is a prime.

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 1118457.

It is not an unprimeable number, because it can be changed into a prime (1118437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948 + ... + 1770.

2^1118457 is an apocalyptic number.

It is an amenable number.

1118457 is a deficient number, since it is larger than the sum of its proper divisors (509767).

1118457 is a wasteful number, since it uses less digits than its factorization.

1118457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 977 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 1118457 is about 1057.5712741938. The cubic root of 1118457 is about 103.8021695338.

The spelling of 1118457 in words is "one million, one hundred eighteen thousand, four hundred fifty-seven".