1057813199 has 4 divisors (see below), whose sum is σ = 1063351680. Its totient is φ = 1052274720.

The previous prime is 1057813189. The next prime is 1057813247. The reversal of 1057813199 is 9913187501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1057813199 - 2²⁰ = 1056764623 is a prime.

It is a super-2 number, since 2×1057813199² = 2237937527957227202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057813109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768954 + ... + 2769335.

It is an arithmetic number, because the mean of its divisors is an integer number (265837920).

Almost surely, 2^1057813199 is an apocalyptic number.

1057813199 is a deficient number, since it is larger than the sum of its proper divisors (5538481).

1057813199 is an equidigital number, since it uses as much as digits as its factorization.

1057813199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538480.

The product of its (nonzero) digits is 68040, while the sum is 44.

The square root of 1057813199 is about 32524.0403240434. The cubic root of 1057813199 is about 1018.9111792153.

The spelling of 1057813199 in words is "one billion, fifty-seven million, eight hundred thirteen thousand, one hundred ninety-nine".