302212147 has 2 divisors, whose sum is σ = 302212148. Its totient is φ = 302212146.

The previous prime is 302212093. The next prime is 302212151. The reversal of 302212147 is 741212203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 302212147 - 2¹¹ = 302210099 is a prime.

It is not a weakly prime, because it can be changed into another prime (302212747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151106073 + 151106074.

It is an arithmetic number, because the mean of its divisors is an integer number (151106074).

Almost surely, 2^302212147 is an apocalyptic number.

302212147 is a deficient number, since it is larger than the sum of its proper divisors (1).

302212147 is an equidigital number, since it uses as much as digits as its factorization.

302212147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 302212147 is about 17384.2499694407. The cubic root of 302212147 is about 671.0743489762.

The spelling of 302212147 in words is "three hundred two million, two hundred twelve thousand, one hundred forty-seven".