2173013345 has 16 divisors (see below), whose sum is σ = 2654666688. Its totient is φ = 1707203520.

The previous prime is 2173013341. The next prime is 2173013347. The reversal of 2173013345 is 5433103712.

It is not a de Polignac number, because 2173013345 - 2² = 2173013341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173013341) 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, 101087 + ... + 120683.

It is an arithmetic number, because the mean of its divisors is an integer number (165916668).

Almost surely, 2^2173013345 is an apocalyptic number.

It is an amenable number.

2173013345 is a deficient number, since it is larger than the sum of its proper divisors (481653343).

2173013345 is a wasteful number, since it uses less digits than its factorization.

2173013345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 2173013345 is about 46615.5912222510. The cubic root of 2173013345 is about 1295.2515812406.

The spelling of 2173013345 in words is "two billion, one hundred seventy-three million, thirteen thousand, three hundred forty-five".