212519140 has 12 divisors (see below), whose sum is σ = 446290236. Its totient is φ = 85007648.

The previous prime is 212519107. The next prime is 212519171. The reversal of 212519140 is 41915212.

It is a happy number.

212519140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 96353856 + 116165284 = 9816^2 + 10778^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5312959 + ... + 5312998.

It is an arithmetic number, because the mean of its divisors is an integer number (37190853).

Almost surely, 2^212519140 is an apocalyptic number.

212519140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212519140 is an abundant number, since it is smaller than the sum of its proper divisors (233771096).

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

212519140 is a wasteful number, since it uses less digits than its factorization.

212519140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625966 (or 10625964 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 212519140 is about 14578.0362189151. The cubic root of 212519140 is about 596.7595117146.

The spelling of 212519140 in words is "two hundred twelve million, five hundred nineteen thousand, one hundred forty".