2045123 has 8 divisors (see below), whose sum is σ = 2112000. Its totient is φ = 1979208.

The previous prime is 2045093. The next prime is 2045129. The reversal of 2045123 is 3215402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045123 - 2¹⁰ = 2044099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045129) 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, 8438 + ... + 8676.

It is an arithmetic number, because the mean of its divisors is an integer number (264000).

2^2045123 is an apocalyptic number.

2045123 is a deficient number, since it is larger than the sum of its proper divisors (66877).

2045123 is a wasteful number, since it uses less digits than its factorization.

2045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2045123 is about 1430.0779699023. The cubic root of 2045123 is about 126.9325907587.

The spelling of 2045123 in words is "two million, forty-five thousand, one hundred twenty-three".