2045453 has 4 divisors (see below), whose sum is σ = 2049888. Its totient is φ = 2041020.

The previous prime is 2045441. The next prime is 2045503. The reversal of 2045453 is 3545402.

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 2045453 - 2⁴ = 2045437 is a prime.

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 (2045053) 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, 1433 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (512472).

2^2045453 is an apocalyptic number.

It is an amenable number.

2045453 is a deficient number, since it is larger than the sum of its proper divisors (4435).

2045453 is an equidigital number, since it uses as much as digits as its factorization.

2045453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2045453 is about 1430.1933435728. The cubic root of 2045453 is about 126.9394176508.

The spelling of 2045453 in words is "two million, forty-five thousand, four hundred fifty-three".