227148149 has 2 divisors, whose sum is σ = 227148150. Its totient is φ = 227148148.

The previous prime is 227148139. The next prime is 227148151. The reversal of 227148149 is 941841722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125037124 + 102111025 = 11182^2 + 10105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227148149 is a prime.

Together with 227148151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227148139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113574074 + 113574075.

It is an arithmetic number, because the mean of its divisors is an integer number (113574075).

Almost surely, 2^227148149 is an apocalyptic number.

It is an amenable number.

227148149 is a deficient number, since it is larger than the sum of its proper divisors (1).

227148149 is an equidigital number, since it uses as much as digits as its factorization.

227148149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 227148149 is about 15071.4348686514. The cubic root of 227148149 is about 610.1496980984.

The spelling of 227148149 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, one hundred forty-nine".