1115257 has 12 divisors (see below), whose sum is σ = 1322020. Its totient is φ = 934560.

The previous prime is 1115239. The next prime is 1115267. The reversal of 1115257 is 7525111.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 958441 = 396^2 + 979^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1115257 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115207) 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, 1219 + ... + 1927.

2^1115257 is an apocalyptic number.

It is an amenable number.

1115257 is a deficient number, since it is larger than the sum of its proper divisors (206763).

1115257 is a wasteful number, since it uses less digits than its factorization.

1115257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 733 counting only the distinct ones).

The product of its digits is 350, while the sum is 22.

The square root of 1115257 is about 1056.0572901126. The cubic root of 1115257 is about 103.7030793786.

The spelling of 1115257 in words is "one million, one hundred fifteen thousand, two hundred fifty-seven".