2169045 has 16 divisors (see below), whose sum is σ = 3856320. Its totient is φ = 1156752.

The previous prime is 2169031. The next prime is 2169071. The reversal of 2169045 is 5409612.

It is not a de Polignac number, because 2169045 - 2⁴ = 2169029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7899 + ... + 8168.

It is an arithmetic number, because the mean of its divisors is an integer number (241020).

2^2169045 is an apocalyptic number.

It is an amenable number.

2169045 is a deficient number, since it is larger than the sum of its proper divisors (1687275).

2169045 is a wasteful number, since it uses less digits than its factorization.

2169045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16081 (or 16075 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2169045 is about 1472.7678024726. The cubic root of 2169045 is about 129.4462640358.

It can be divided in two parts, 216 and 9045, that added together give a cube (9261 = 21³).

The spelling of 2169045 in words is "two million, one hundred sixty-nine thousand, forty-five".