1051165 has 4 divisors (see below), whose sum is σ = 1261404. Its totient is φ = 840928.

The previous prime is 1051157. The next prime is 1051177. The reversal of 1051165 is 5611501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 367236 = 827^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051165 - 2³ = 1051157 is a prime.

It is a super-2 number, since 2×1051165² = 2209895714450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 105112 + ... + 105121.

It is an arithmetic number, because the mean of its divisors is an integer number (315351).

2^1051165 is an apocalyptic number.

It is an amenable number.

1051165 is a deficient number, since it is larger than the sum of its proper divisors (210239).

1051165 is an equidigital number, since it uses as much as digits as its factorization.

1051165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210238.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1051165 is about 1025.2633807954. The cubic root of 1051165 is about 101.6772123194.

Adding to 1051165 its reverse (5611501), we get a palindrome (6662666).

The spelling of 1051165 in words is "one million, fifty-one thousand, one hundred sixty-five".