1057478163 has 12 divisors (see below), whose sum is σ = 1640170440. Its totient is φ = 604273152.

The previous prime is 1057478161. The next prime is 1057478171. The reversal of 1057478163 is 3618747501.

It is not a de Polignac number, because 1057478163 - 2¹ = 1057478161 is a prime.

It is a super-2 number, since 2×1057478163² = 2236520130443709138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057478161) 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 11 ways as a sum of consecutive naturals, for example, 3596718 + ... + 3597011.

It is an arithmetic number, because the mean of its divisors is an integer number (136680870).

Almost surely, 2^1057478163 is an apocalyptic number.

1057478163 is a deficient number, since it is larger than the sum of its proper divisors (582692277).

1057478163 is an equidigital number, since it uses as much as digits as its factorization.

1057478163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193746 (or 7193739 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 1057478163 is about 32518.8893260517. The cubic root of 1057478163 is about 1018.8035962719.

The spelling of 1057478163 in words is "one billion, fifty-seven million, four hundred seventy-eight thousand, one hundred sixty-three".