147228233 has 2 divisors, whose sum is σ = 147228234. Its totient is φ = 147228232.

The previous prime is 147228229. The next prime is 147228239. The reversal of 147228233 is 332822741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81504784 + 65723449 = 9028^2 + 8107^2 .

It is an emirp because it is prime and its reverse (332822741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147228233 - 2² = 147228229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147228233.

It is not a weakly prime, because it can be changed into another prime (147228239) 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, 73614116 + 73614117.

It is an arithmetic number, because the mean of its divisors is an integer number (73614117).

Almost surely, 2^147228233 is an apocalyptic number.

It is an amenable number.

147228233 is a deficient number, since it is larger than the sum of its proper divisors (1).

147228233 is an equidigital number, since it uses as much as digits as its factorization.

147228233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 147228233 is about 12133.7641727536. The cubic root of 147228233 is about 528.0362035648.

The spelling of 147228233 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, two hundred thirty-three".