1045771 has 4 divisors (see below), whose sum is σ = 1047832. Its totient is φ = 1043712.

The previous prime is 1045763. The next prime is 1045799. The reversal of 1045771 is 1775401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1775401 = 31 ⋅57271.

It is a cyclic number.

It is not a de Polignac number, because 1045771 - 2³ = 1045763 is a prime.

It is a Duffinian number.

1045771 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331 + ... + 1483.

It is an arithmetic number, because the mean of its divisors is an integer number (261958).

2^1045771 is an apocalyptic number.

1045771 is a deficient number, since it is larger than the sum of its proper divisors (2061).

1045771 is an equidigital number, since it uses as much as digits as its factorization.

1045771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

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

The square root of 1045771 is about 1022.6294539079. The cubic root of 1045771 is about 101.5029968297.

The spelling of 1045771 in words is "one million, forty-five thousand, seven hundred seventy-one".