2151015210 has 32 divisors (see below), whose sum is σ = 5736041280. Its totient is φ = 573603984.

The previous prime is 2151015199. The next prime is 2151015211. The reversal of 2151015210 is 125101512.

2151015210 is a `hidden beast` number, since 2 + 1 + 510 + 152 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2151015211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3983092 + ... + 3983631.

It is an arithmetic number, because the mean of its divisors is an integer number (179251290).

Almost surely, 2^2151015210 is an apocalyptic number.

2151015210 is an abundant number, since it is smaller than the sum of its proper divisors (3585026070).

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

2151015210 is a wasteful number, since it uses less digits than its factorization.

2151015210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966739 (or 7966733 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 2151015210 is about 46379.0384764497. The cubic root of 2151015210 is about 1290.8659950432.

Adding to 2151015210 its reverse (125101512), we get a palindrome (2276116722).

The spelling of 2151015210 in words is "two billion, one hundred fifty-one million, fifteen thousand, two hundred ten".