308066213 has 12 divisors (see below), whose sum is σ = 381243168. Its totient is φ = 243743760.

The previous prime is 308066207. The next prime is 308066219. The reversal of 308066213 is 312660803.

It is an interprime number because it is at equal distance from previous prime (308066207) and next prime (308066219).

It is not a de Polignac number, because 308066213 - 2⁶ = 308066149 is a prime.

It is a super-2 number, since 2×308066213² = 189809583184322738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308066219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129023 + ... + 131388.

It is an arithmetic number, because the mean of its divisors is an integer number (31770264).

Almost surely, 2^308066213 is an apocalyptic number.

It is an amenable number.

308066213 is a deficient number, since it is larger than the sum of its proper divisors (73176955).

308066213 is a wasteful number, since it uses less digits than its factorization.

308066213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260444 (or 260431 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 308066213 is about 17551.8150913232. The cubic root of 308066213 is about 675.3797318320.

The spelling of 308066213 in words is "three hundred eight million, sixty-six thousand, two hundred thirteen".