1057135727 has 4 divisors (see below), whose sum is σ = 1064741160. Its totient is φ = 1049530296.

The previous prime is 1057135697. The next prime is 1057135733. The reversal of 1057135727 is 7275317501.

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 1057135727 - 2⁶ = 1057135663 is a prime.

It is a super-2 number, since 2×1057135727² = 2235071890599637058, 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 (1057135127) 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 3 ways as a sum of consecutive naturals, for example, 3802508 + ... + 3802785.

It is an arithmetic number, because the mean of its divisors is an integer number (266185290).

Almost surely, 2^1057135727 is an apocalyptic number.

1057135727 is a deficient number, since it is larger than the sum of its proper divisors (7605433).

1057135727 is an equidigital number, since it uses as much as digits as its factorization.

1057135727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605432.

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 1057135727 is about 32513.6237137604. The cubic root of 1057135727 is about 1018.6936136405.

The spelling of 1057135727 in words is "one billion, fifty-seven million, one hundred thirty-five thousand, seven hundred twenty-seven".