1045985 has 8 divisors (see below), whose sum is σ = 1282176. Its totient is φ = 818800.

The previous prime is 1045981. The next prime is 1045987. The reversal of 1045985 is 5895401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045985 - 2² = 1045981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991 + ... + 2460.

It is an arithmetic number, because the mean of its divisors is an integer number (160272).

2^1045985 is an apocalyptic number.

It is an amenable number.

1045985 is a deficient number, since it is larger than the sum of its proper divisors (236191).

1045985 is an equidigital number, since it uses as much as digits as its factorization.

1045985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1045985 is about 1022.7340807854. The cubic root of 1045985 is about 101.5099200024.

The spelling of 1045985 in words is "one million, forty-five thousand, nine hundred eighty-five".