510138212 has 6 divisors (see below), whose sum is σ = 892741878. Its totient is φ = 255069104.

The previous prime is 510138199. The next prime is 510138221. The reversal of 510138212 is 212831015.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 510127396 + 10816 = 22586^2 + 104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63767273 + ... + 63767280.

It is an arithmetic number, because the mean of its divisors is an integer number (148790313).

Almost surely, 2^510138212 is an apocalyptic number.

It is an amenable number.

510138212 is a deficient number, since it is larger than the sum of its proper divisors (382603666).

510138212 is a wasteful number, since it uses less digits than its factorization.

510138212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127534557 (or 127534555 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 510138212 is about 22586.2394390921. The cubic root of 510138212 is about 799.0291410177.

Adding to 510138212 its reverse (212831015), we get a palindrome (722969227).

The spelling of 510138212 in words is "five hundred ten million, one hundred thirty-eight thousand, two hundred twelve".