1045641 has 4 divisors (see below), whose sum is σ = 1394192. Its totient is φ = 697092.

The previous prime is 1045633. The next prime is 1045643. The reversal of 1045641 is 1465401.

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 1045641 - 2³ = 1045633 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1045643) 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, 174271 + ... + 174276.

It is an arithmetic number, because the mean of its divisors is an integer number (348548).

2^1045641 is an apocalyptic number.

It is an amenable number.

1045641 is a deficient number, since it is larger than the sum of its proper divisors (348551).

1045641 is an equidigital number, since it uses as much as digits as its factorization.

1045641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348550.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1045641 is about 1022.5658902975. The cubic root of 1045641 is about 101.4987907028.

The spelling of 1045641 in words is "one million, forty-five thousand, six hundred forty-one".