2181529150 has 12 divisors (see below), whose sum is σ = 4057644312. Its totient is φ = 872611640.

The previous prime is 2181529123. The next prime is 2181529171. The reversal of 2181529150 is 519251812.

2181529150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21815242 + ... + 21815341.

It is an arithmetic number, because the mean of its divisors is an integer number (338137026).

Almost surely, 2^2181529150 is an apocalyptic number.

2181529150 is a deficient number, since it is larger than the sum of its proper divisors (1876115162).

2181529150 is a wasteful number, since it uses less digits than its factorization.

2181529150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43630595 (or 43630590 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 2181529150 is about 46706.8426464474. The cubic root of 2181529150 is about 1296.9413595695.

The spelling of 2181529150 in words is "two billion, one hundred eighty-one million, five hundred twenty-nine thousand, one hundred fifty".