1115296257 has 16 divisors (see below), whose sum is σ = 1580533760. Its totient is φ = 697555152.

The previous prime is 1115296253. The next prime is 1115296267. The reversal of 1115296257 is 7526925111.

It is not a de Polignac number, because 1115296257 - 2² = 1115296253 is a prime.

It is a super-3 number, since 3×1115296257³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115296253) 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, 89113 + ... + 100854.

It is an arithmetic number, because the mean of its divisors is an integer number (98783360).

Almost surely, 2^1115296257 is an apocalyptic number.

It is an amenable number.

1115296257 is a deficient number, since it is larger than the sum of its proper divisors (465237503).

1115296257 is a wasteful number, since it uses less digits than its factorization.

1115296257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190092.

The product of its digits is 37800, while the sum is 39.

The square root of 1115296257 is about 33396.0515181061. The cubic root of 1115296257 is about 1037.0429614573.

The spelling of 1115296257 in words is "one billion, one hundred fifteen million, two hundred ninety-six thousand, two hundred fifty-seven".