1045881 has 12 divisors (see below), whose sum is σ = 1530880. Its totient is φ = 687960.

The previous prime is 1045859. The next prime is 1045903. The reversal of 1045881 is 1885401.

It is an interprime number because it is at equal distance from previous prime (1045859) and next prime (1045903).

It is not a de Polignac number, because 1045881 - 2¹⁸ = 783737 is a prime.

It is a super-2 number, since 2×1045881² = 2187734132322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25 + ... + 1446.

2^1045881 is an apocalyptic number.

It is an amenable number.

1045881 is a deficient number, since it is larger than the sum of its proper divisors (484999).

1045881 is a wasteful number, since it uses less digits than its factorization.

1045881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1045881 is about 1022.6832354155. The cubic root of 1045881 is about 101.5065555878.

The spelling of 1045881 in words is "one million, forty-five thousand, eight hundred eighty-one".