1115892457 has 2 divisors, whose sum is σ = 1115892458. Its totient is φ = 1115892456.

The previous prime is 1115892443. The next prime is 1115892469. The reversal of 1115892457 is 7542985111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717650521 + 398241936 = 26789^2 + 19956^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115892457 - 2⁷ = 1115892329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115892487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557946228 + 557946229.

It is an arithmetic number, because the mean of its divisors is an integer number (557946229).

Almost surely, 2^1115892457 is an apocalyptic number.

It is an amenable number.

1115892457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115892457 is an equidigital number, since it uses as much as digits as its factorization.

1115892457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 43.

The square root of 1115892457 is about 33404.9765304513. The cubic root of 1115892457 is about 1037.2277180099.

The spelling of 1115892457 in words is "one billion, one hundred fifteen million, eight hundred ninety-two thousand, four hundred fifty-seven".