2152806128 has 20 divisors (see below), whose sum is σ = 4550249688. Its totient is φ = 978548160.

The previous prime is 2152806127. The next prime is 2152806157. The reversal of 2152806128 is 8216082512.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152806121) 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, 6115751 + ... + 6116102.

Almost surely, 2^2152806128 is an apocalyptic number.

It is an amenable number.

2152806128 is an abundant number, since it is smaller than the sum of its proper divisors (2397443560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2152806128 is a wasteful number, since it uses less digits than its factorization.

2152806128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231872 (or 12231866 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 2152806128 is about 46398.3418669245. The cubic root of 2152806128 is about 1291.2241505515.

The spelling of 2152806128 in words is "two billion, one hundred fifty-two million, eight hundred six thousand, one hundred twenty-eight".