2152223391 has 8 divisors (see below), whose sum is σ = 2962200064. Its totient is φ = 1388531160.

The previous prime is 2152223383. The next prime is 2152223471. The reversal of 2152223391 is 1933222512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2152223391 - 2³ = 2152223383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152223351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11571001 + ... + 11571186.

It is an arithmetic number, because the mean of its divisors is an integer number (370275008).

Almost surely, 2^2152223391 is an apocalyptic number.

2152223391 is a deficient number, since it is larger than the sum of its proper divisors (809976673).

2152223391 is a wasteful number, since it uses less digits than its factorization.

2152223391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23142221.

The product of its digits is 6480, while the sum is 30.

The square root of 2152223391 is about 46392.0617239631. The cubic root of 2152223391 is about 1291.1076341003.

The spelling of 2152223391 in words is "two billion, one hundred fifty-two million, two hundred twenty-three thousand, three hundred ninety-one".