1117268257 has 12 divisors (see below), whose sum is σ = 1300555776. Its totient is φ = 957012840.

The previous prime is 1117268233. The next prime is 1117268261. The reversal of 1117268257 is 7528627111.

It is not a de Polignac number, because 1117268257 - 2⁷ = 1117268129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117268287) 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, 74632 + ... + 88342.

It is an arithmetic number, because the mean of its divisors is an integer number (108379648).

Almost surely, 2^1117268257 is an apocalyptic number.

It is an amenable number.

1117268257 is a deficient number, since it is larger than the sum of its proper divisors (183287519).

1117268257 is a wasteful number, since it uses less digits than its factorization.

1117268257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15388 (or 15381 counting only the distinct ones).

The product of its digits is 47040, while the sum is 40.

The square root of 1117268257 is about 33425.5629271969. The cubic root of 1117268257 is about 1037.6538139785.

The spelling of 1117268257 in words is "one billion, one hundred seventeen million, two hundred sixty-eight thousand, two hundred fifty-seven".