605131213 has 2 divisors, whose sum is σ = 605131214. Its totient is φ = 605131212.

The previous prime is 605131211. The next prime is 605131229. The reversal of 605131213 is 312131506.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 603340969 + 1790244 = 24563^2 + 1338^2 .

It is a cyclic number.

It is not a de Polignac number, because 605131213 - 2¹ = 605131211 is a prime.

Together with 605131211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605131211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302565606 + 302565607.

It is an arithmetic number, because the mean of its divisors is an integer number (302565607).

Almost surely, 2^605131213 is an apocalyptic number.

It is an amenable number.

605131213 is a deficient number, since it is larger than the sum of its proper divisors (1).

605131213 is an equidigital number, since it uses as much as digits as its factorization.

605131213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 605131213 is about 24599.4148914156. The cubic root of 605131213 is about 845.8301951356.

Adding to 605131213 its reverse (312131506), we get a palindrome (917262719).

The spelling of 605131213 in words is "six hundred five million, one hundred thirty-one thousand, two hundred thirteen".