2045231 has 4 divisors (see below), whose sum is σ = 2071200. Its totient is φ = 2019264.

The previous prime is 2045213. The next prime is 2045311. The reversal of 2045231 is 1325402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2045231 - 2¹⁴ = 2028847 is a prime.

It is a super-2 number, since 2×2045231² = 8365939686722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 0 + 4⁴ + 5⁹ + 2¹⁵ + 3¹⁰ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045731) 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, 12866 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (517800).

2^2045231 is an apocalyptic number.

2045231 is a deficient number, since it is larger than the sum of its proper divisors (25969).

2045231 is an equidigital number, since it uses as much as digits as its factorization.

2045231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25968.

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

The square root of 2045231 is about 1430.1157295827. The cubic root of 2045231 is about 126.9348250951.

The spelling of 2045231 in words is "two million, forty-five thousand, two hundred thirty-one".