2045015 has 24 divisors (see below), whose sum is σ = 3028752. Its totient is φ = 1317120.

The previous prime is 2045011. The next prime is 2045023. The reversal of 2045015 is 5105402.

2045015 = 88² + 89² + ... + 189².

It is not a de Polignac number, because 2045015 - 2² = 2045011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2044984 and 2045002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3920 + ... + 4410.

It is an arithmetic number, because the mean of its divisors is an integer number (126198).

2^2045015 is an apocalyptic number.

2045015 is a deficient number, since it is larger than the sum of its proper divisors (983737).

2045015 is a wasteful number, since it uses less digits than its factorization.

2045015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2045015 is about 1430.0402092249. The cubic root of 2045015 is about 126.9303563436.

2045015 divided by its sum of digits (17) gives a triangular number (120295 = T₄₉₀).

The spelling of 2045015 in words is "two million, forty-five thousand, fifteen".