1057985099 has 8 divisors (see below), whose sum is σ = 1083601152. Its totient is φ = 1032578560.

The previous prime is 1057985083. The next prime is 1057985101. The reversal of 1057985099 is 9905897501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057985099 - 2⁴ = 1057985083 is a prime.

It is a super-2 number, since 2×1057985099² = 2238664939412079602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057985099.

It is not an unprimeable number, because it can be changed into a prime (1057985069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42134 + ... + 62379.

It is an arithmetic number, because the mean of its divisors is an integer number (135450144).

Almost surely, 2^1057985099 is an apocalyptic number.

1057985099 is a deficient number, since it is larger than the sum of its proper divisors (25616053).

1057985099 is a wasteful number, since it uses less digits than its factorization.

1057985099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104757.

The product of its (nonzero) digits is 1020600, while the sum is 53.

The square root of 1057985099 is about 32526.6828772932. The cubic root of 1057985099 is about 1018.9663689675.

The spelling of 1057985099 in words is "one billion, fifty-seven million, nine hundred eighty-five thousand, ninety-nine".