2157322333 has 8 divisors (see below), whose sum is σ = 2287101440. Its totient is φ = 2031305040.

The previous prime is 2157322313. The next prime is 2157322361. The reversal of 2157322333 is 3332237512.

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

It is a cyclic number.

It is not a de Polignac number, because 2157322333 - 2⁹ = 2157321821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2157322295 and 2157322304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157322303) 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 7 ways as a sum of consecutive naturals, for example, 939273 + ... + 941566.

It is an arithmetic number, because the mean of its divisors is an integer number (285887680).

Almost surely, 2^2157322333 is an apocalyptic number.

It is an amenable number.

2157322333 is a deficient number, since it is larger than the sum of its proper divisors (129779107).

2157322333 is a wasteful number, since it uses less digits than its factorization.

2157322333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880907.

The product of its digits is 22680, while the sum is 31.

The square root of 2157322333 is about 46446.9841109194. The cubic root of 2157322333 is about 1292.1264395631.

Adding to 2157322333 its reverse (3332237512), we get a palindrome (5489559845).

The spelling of 2157322333 in words is "two billion, one hundred fifty-seven million, three hundred twenty-two thousand, three hundred thirty-three".