2045315 has 4 divisors (see below), whose sum is σ = 2454384. Its totient is φ = 1636248.

The previous prime is 2045311. The next prime is 2045317. The reversal of 2045315 is 5135402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5135402 = 2 ⋅2567701.

It is a cyclic number.

It is not a de Polignac number, because 2045315 - 2² = 2045311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045311) 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, 204527 + ... + 204536.

It is an arithmetic number, because the mean of its divisors is an integer number (613596).

2^2045315 is an apocalyptic number.

2045315 is a deficient number, since it is larger than the sum of its proper divisors (409069).

2045315 is an equidigital number, since it uses as much as digits as its factorization.

2045315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409068.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2045315 is about 1430.1450975338. The cubic root of 2045315 is about 126.9365628580.

The spelling of 2045315 in words is "two million, forty-five thousand, three hundred fifteen".