1045761 has 4 divisors (see below), whose sum is σ = 1394352. Its totient is φ = 697172.

The previous prime is 1045739. The next prime is 1045763. The reversal of 1045761 is 1675401.

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 a cyclic number.

It is not a de Polignac number, because 1045761 - 2⁵ = 1045729 is a prime.

It is an Ulam number.

It is a D-number.

1045761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1045763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174291 + ... + 174296.

It is an arithmetic number, because the mean of its divisors is an integer number (348588).

2^1045761 is an apocalyptic number.

It is an amenable number.

1045761 is a deficient number, since it is larger than the sum of its proper divisors (348591).

1045761 is an equidigital number, since it uses as much as digits as its factorization.

1045761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348590.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1045761 is about 1022.6245645397. The cubic root of 1045761 is about 101.5026732938.

The spelling of 1045761 in words is "one million, forty-five thousand, seven hundred sixty-one".