2172294239 has 4 divisors (see below), whose sum is σ = 2179370424. Its totient is φ = 2165218056.

The previous prime is 2172294227. The next prime is 2172294247. The reversal of 2172294239 is 9324922712.

2172294239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172294239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2172294196 and 2172294205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172294539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537632 + ... + 3538245.

It is an arithmetic number, because the mean of its divisors is an integer number (544842606).

Almost surely, 2^2172294239 is an apocalyptic number.

2172294239 is a deficient number, since it is larger than the sum of its proper divisors (7076185).

2172294239 is an equidigital number, since it uses as much as digits as its factorization.

2172294239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7076184.

The product of its digits is 108864, while the sum is 41.

The square root of 2172294239 is about 46607.8774350431. The cubic root of 2172294239 is about 1295.1086881243.

The spelling of 2172294239 in words is "two billion, one hundred seventy-two million, two hundred ninety-four thousand, two hundred thirty-nine".