1045749 has 4 divisors (see below), whose sum is σ = 1394336. Its totient is φ = 697164.

The previous prime is 1045739. The next prime is 1045763. The reversal of 1045749 is 9475401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1045749 - 2⁷ = 1045621 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045729) 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, 174289 + ... + 174294.

It is an arithmetic number, because the mean of its divisors is an integer number (348584).

2^1045749 is an apocalyptic number.

It is an amenable number.

1045749 is a deficient number, since it is larger than the sum of its proper divisors (348587).

1045749 is an equidigital number, since it uses as much as digits as its factorization.

1045749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348586.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1045749 is about 1022.6186972670. The cubic root of 1045749 is about 101.5022850481.

The spelling of 1045749 in words is "one million, forty-five thousand, seven hundred forty-nine".