2045615 has 16 divisors (see below), whose sum is σ = 2884896. Its totient is φ = 1372800.

The previous prime is 2045611. The next prime is 2045629. The reversal of 2045615 is 5165402.

It is not a de Polignac number, because 2045615 - 2² = 2045611 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 (2045611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (180306).

2^2045615 is an apocalyptic number.

2045615 is a deficient number, since it is larger than the sum of its proper divisors (839281).

2045615 is a wasteful number, since it uses less digits than its factorization.

2045615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2045615 is about 1430.2499781507. The cubic root of 2045615 is about 126.9427687655.

The spelling of 2045615 in words is "two million, forty-five thousand, six hundred fifteen".