2157445083 has 8 divisors (see below), whose sum is σ = 2930869008. Its totient is φ = 1411158944.

The previous prime is 2157445067. The next prime is 2157445097. The reversal of 2157445083 is 3805447512.

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 2157445083 - 2⁴ = 2157445067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2157445033) 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, 6784260 + ... + 6784577.

It is an arithmetic number, because the mean of its divisors is an integer number (366358626).

Almost surely, 2^2157445083 is an apocalyptic number.

2157445083 is a deficient number, since it is larger than the sum of its proper divisors (773423925).

2157445083 is a wasteful number, since it uses less digits than its factorization.

2157445083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13568893.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 2157445083 is about 46448.3054911587. The cubic root of 2157445083 is about 1292.1509461022.

The spelling of 2157445083 in words is "two billion, one hundred fifty-seven million, four hundred forty-five thousand, eighty-three".