149303227 has 2 divisors, whose sum is σ = 149303228. Its totient is φ = 149303226.

The previous prime is 149303207. The next prime is 149303233. The reversal of 149303227 is 722303941.

It is a strong prime.

It is an emirp because it is prime and its reverse (722303941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149303227 - 2²³ = 140914619 is a prime.

It is a super-2 number, since 2×149303227² = 44582907185227058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149303207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74651613 + 74651614.

It is an arithmetic number, because the mean of its divisors is an integer number (74651614).

Almost surely, 2^149303227 is an apocalyptic number.

149303227 is a deficient number, since it is larger than the sum of its proper divisors (1).

149303227 is an equidigital number, since it uses as much as digits as its factorization.

149303227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 149303227 is about 12218.9699647720. The cubic root of 149303227 is about 530.5053054356.

The spelling of 149303227 in words is "one hundred forty-nine million, three hundred three thousand, two hundred twenty-seven".