305252213 has 12 divisors (see below), whose sum is σ = 355433760. Its totient is φ = 261391032.

The previous prime is 305252209. The next prime is 305252273. The reversal of 305252213 is 312252503.

It is not a de Polignac number, because 305252213 - 2² = 305252209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305252203) 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, 62270 + ... + 66992.

It is an arithmetic number, because the mean of its divisors is an integer number (29619480).

Almost surely, 2^305252213 is an apocalyptic number.

It is an amenable number.

305252213 is a deficient number, since it is larger than the sum of its proper divisors (50181547).

305252213 is a wasteful number, since it uses less digits than its factorization.

305252213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056 (or 6049 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 305252213 is about 17471.4685415966. The cubic root of 305252213 is about 673.3170423522.

The spelling of 305252213 in words is "three hundred five million, two hundred fifty-two thousand, two hundred thirteen".