1057142 has 8 divisors (see below), whose sum is σ = 1603800. Its totient is φ = 522544.

The previous prime is 1057129. The next prime is 1057157. The reversal of 1057142 is 2417501.

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

It is a super-2 number, since 2×1057142² = 2235098416328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792 + ... + 3147.

It is an arithmetic number, because the mean of its divisors is an integer number (200475).

2^1057142 is an apocalyptic number.

1057142 is a deficient number, since it is larger than the sum of its proper divisors (546658).

1057142 is an equidigital number, since it uses as much as digits as its factorization.

1057142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1057142 is about 1028.1741097694. The cubic root of 1057142 is about 101.8695628599.

The spelling of 1057142 in words is "one million, fifty-seven thousand, one hundred forty-two".