1057161863 has 4 divisors (see below), whose sum is σ = 1057432320. Its totient is φ = 1056891408.

The previous prime is 1057161841. The next prime is 1057161871. The reversal of 1057161863 is 3681617501.

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 1057161863 - 2⁶ = 1057161799 is a prime.

It is a super-2 number, since 2×1057161863² = 2235182409163261538, 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 (1057161803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129278 + ... + 137211.

It is an arithmetic number, because the mean of its divisors is an integer number (264358080).

Almost surely, 2^1057161863 is an apocalyptic number.

1057161863 is a deficient number, since it is larger than the sum of its proper divisors (270457).

1057161863 is an equidigital number, since it uses as much as digits as its factorization.

1057161863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270456.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1057161863 is about 32514.0256351009. The cubic root of 1057161863 is about 1018.7020087646.

The spelling of 1057161863 in words is "one billion, fifty-seven million, one hundred sixty-one thousand, eight hundred sixty-three".