606212513 has 4 divisors (see below), whose sum is σ = 614516868. Its totient is φ = 597908160.

The previous prime is 606212507. The next prime is 606212521. The reversal of 606212513 is 315212606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 253223569 + 352988944 = 15913^2 + 18788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606212513 is a prime.

It is a super-2 number, since 2×606212513² = 734987221835550338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606212573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4152068 + ... + 4152213.

It is an arithmetic number, because the mean of its divisors is an integer number (153629217).

Almost surely, 2^606212513 is an apocalyptic number.

It is an amenable number.

606212513 is a deficient number, since it is larger than the sum of its proper divisors (8304355).

606212513 is an equidigital number, since it uses as much as digits as its factorization.

606212513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304354.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 606212513 is about 24621.3832470883. The cubic root of 606212513 is about 846.3336958371. Note that the first 3 decimals are identical.

The spelling of 606212513 in words is "six hundred six million, two hundred twelve thousand, five hundred thirteen".