1113369857 has 2 divisors, whose sum is σ = 1113369858. Its totient is φ = 1113369856.

The previous prime is 1113369853. The next prime is 1113369913. The reversal of 1113369857 is 7589633111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013849281 + 99520576 = 31841^2 + 9976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113369857 - 2² = 1113369853 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113369853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556684928 + 556684929.

It is an arithmetic number, because the mean of its divisors is an integer number (556684929).

Almost surely, 2^1113369857 is an apocalyptic number.

It is an amenable number.

1113369857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113369857 is an equidigital number, since it uses as much as digits as its factorization.

1113369857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 1113369857 is about 33367.1973201226. The cubic root of 1113369857 is about 1036.4455384658.

The spelling of 1113369857 in words is "one billion, one hundred thirteen million, three hundred sixty-nine thousand, eight hundred fifty-seven".