1057147 has 8 divisors (see below), whose sum is σ = 1301216. Its totient is φ = 836352.

The previous prime is 1057129. The next prime is 1057157. The reversal of 1057147 is 7417501.

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 1057147 - 2⁷ = 1057019 is a prime.

It is a super-2 number, since 2×1057147² = 2235119559218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057117) 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, 5718 + ... + 5899.

It is an arithmetic number, because the mean of its divisors is an integer number (162652).

2^1057147 is an apocalyptic number.

1057147 is a deficient number, since it is larger than the sum of its proper divisors (244069).

1057147 is a wasteful number, since it uses less digits than its factorization.

1057147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11637.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 1057147 is about 1028.1765412613. The cubic root of 1057147 is about 101.8697234649.

The spelling of 1057147 in words is "one million, fifty-seven thousand, one hundred forty-seven".