1057642851 has 8 divisors (see below), whose sum is σ = 1410512400. Its totient is φ = 704934272.

The previous prime is 1057642849. The next prime is 1057642853. The reversal of 1057642851 is 1582467501.

It is an interprime number because it is at equal distance from previous prime (1057642849) and next prime (1057642853).

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 1057642851 - 2¹ = 1057642849 is a prime.

It is a super-2 number, since 2×1057642851² = 2237216800542816402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057642853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23970 + ... + 51863.

It is an arithmetic number, because the mean of its divisors is an integer number (176314050).

Almost surely, 2^1057642851 is an apocalyptic number.

1057642851 is a deficient number, since it is larger than the sum of its proper divisors (352869549).

1057642851 is an equidigital number, since it uses as much as digits as its factorization.

1057642851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80485.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1057642851 is about 32521.4214172751. The cubic root of 1057642851 is about 1018.8564818454.

The spelling of 1057642851 in words is "one billion, fifty-seven million, six hundred forty-two thousand, eight hundred fifty-one".