2150730021 has 8 divisors (see below), whose sum is σ = 3128334624. Its totient is φ = 1303472720.

The previous prime is 2150730019. The next prime is 2150730037. The reversal of 2150730021 is 1200370512.

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

It is not a de Polignac number, because 2150730021 - 2¹ = 2150730019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2150730021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150730221) 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, 32586786 + ... + 32586851.

It is an arithmetic number, because the mean of its divisors is an integer number (391041828).

Almost surely, 2^2150730021 is an apocalyptic number.

It is an amenable number.

2150730021 is a deficient number, since it is larger than the sum of its proper divisors (977604603).

2150730021 is a wasteful number, since it uses less digits than its factorization.

2150730021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65173651.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 2150730021 is about 46375.9638282591. The cubic root of 2150730021 is about 1290.8089433695.

The spelling of 2150730021 in words is "two billion, one hundred fifty million, seven hundred thirty thousand, twenty-one".