2145069 has 16 divisors (see below), whose sum is σ = 3240000. Its totient is φ = 1402128.

The previous prime is 2145067. The next prime is 2145083. The reversal of 2145069 is 9605412.

2145069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2145069 - 2¹ = 2145067 is a prime.

It is a super-2 number, since 2×2145069² = 9202642029522, which contains 22 as substring.

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

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

2^2145069 is an apocalyptic number.

It is an amenable number.

2145069 is a deficient number, since it is larger than the sum of its proper divisors (1094931).

2145069 is a wasteful number, since it uses less digits than its factorization.

2145069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

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

The square root of 2145069 is about 1464.6054076098. The cubic root of 2145069 is about 128.9675418608.

The spelling of 2145069 in words is "two million, one hundred forty-five thousand, sixty-nine".