2051340212 has 6 divisors (see below), whose sum is σ = 3589845378. Its totient is φ = 1025670104.

The previous prime is 2051340211. The next prime is 2051340217. The reversal of 2051340212 is 2120431502.

It can be written as a sum of positive squares in only one way, i.e., 2046295696 + 5044516 = 45236^2 + 2246^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051340211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256417523 + ... + 256417530.

It is an arithmetic number, because the mean of its divisors is an integer number (598307563).

Almost surely, 2^2051340212 is an apocalyptic number.

It is an amenable number.

2051340212 is a deficient number, since it is larger than the sum of its proper divisors (1538505166).

2051340212 is a wasteful number, since it uses less digits than its factorization.

2051340212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512835057 (or 512835055 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2051340212 is about 45291.7234381736. The cubic root of 2051340212 is about 1270.6108644987.

Adding to 2051340212 its reverse (2120431502), we get a palindrome (4171771714).

The spelling of 2051340212 in words is "two billion, fifty-one million, three hundred forty thousand, two hundred twelve".