2151215332 has 24 divisors (see below), whose sum is σ = 4303829376. Its totient is φ = 921649728.

The previous prime is 2151215299. The next prime is 2151215399. The reversal of 2151215332 is 2335121512.

It is a junction number, because it is equal to n+sod(n) for n = 2151215297 and 2151215306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89913 + ... + 111295.

It is an arithmetic number, because the mean of its divisors is an integer number (179326224).

Almost surely, 2^2151215332 is an apocalyptic number.

It is an amenable number.

2151215332 is an abundant number, since it is smaller than the sum of its proper divisors (2152614044).

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

2151215332 is a wasteful number, since it uses less digits than its factorization.

2151215332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24987 (or 24985 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 2151215332 is about 46381.1958879889. The cubic root of 2151215332 is about 1290.9060261678.

Adding to 2151215332 its reverse (2335121512), we get a palindrome (4486336844).

The spelling of 2151215332 in words is "two billion, one hundred fifty-one million, two hundred fifteen thousand, three hundred thirty-two".