1057165 has 4 divisors (see below), whose sum is σ = 1268604. Its totient is φ = 845728.

The previous prime is 1057163. The next prime is 1057181. The reversal of 1057165 is 5617501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5617501 = 191 ⋅29411.

It can be written as a sum of positive squares in 2 ways, for example, as 315844 + 741321 = 562^2 + 861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057165 - 2¹ = 1057163 is a prime.

It is a super-2 number, since 2×1057165² = 2235195674450, 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 (1057163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105712 + ... + 105721.

It is an arithmetic number, because the mean of its divisors is an integer number (317151).

2^1057165 is an apocalyptic number.

It is an amenable number.

1057165 is a deficient number, since it is larger than the sum of its proper divisors (211439).

1057165 is an equidigital number, since it uses as much as digits as its factorization.

1057165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211438.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 1057165 is about 1028.1852945846. The cubic root of 1057165 is about 101.8703016389.

It can be divided in two parts, 10 and 57165, that added together give a palindrome (57175).

The spelling of 1057165 in words is "one million, fifty-seven thousand, one hundred sixty-five".