2151225060 has 48 divisors (see below), whose sum is σ = 6070880256. Its totient is φ = 569140992.

The previous prime is 2151225059. The next prime is 2151225077. The reversal of 2151225060 is 605221512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151225060.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133537 + ... + 148776.

It is an arithmetic number, because the mean of its divisors is an integer number (126476672).

Almost surely, 2^2151225060 is an apocalyptic number.

2151225060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151225060 is an abundant number, since it is smaller than the sum of its proper divisors (3919655196).

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

2151225060 is a wasteful number, since it uses less digits than its factorization.

2151225060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282452 (or 282450 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2151225060 is about 46381.3007579563. The cubic root of 2151225060 is about 1290.9079720314.

Adding to 2151225060 its reverse (605221512), we get a palindrome (2756446572).

The spelling of 2151225060 in words is "two billion, one hundred fifty-one million, two hundred twenty-five thousand, sixty".