1045171 has 4 divisors (see below), whose sum is σ = 1100200. Its totient is φ = 990144.

The previous prime is 1045157. The next prime is 1045183. The reversal of 1045171 is 1715401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1715401 = 67 ⋅25603.

It is a cyclic number.

It is not a de Polignac number, because 1045171 - 2⁷ = 1045043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 55009 = 1045171 / (1 + 0 + 4 + 5 + 1 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27486 + ... + 27523.

It is an arithmetic number, because the mean of its divisors is an integer number (275050).

2^1045171 is an apocalyptic number.

1045171 is a deficient number, since it is larger than the sum of its proper divisors (55029).

1045171 is an equidigital number, since it uses as much as digits as its factorization.

1045171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55028.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1045171 is about 1022.3360504257. The cubic root of 1045171 is about 101.4835810273.

The spelling of 1045171 in words is "one million, forty-five thousand, one hundred seventy-one".