128337149 has 2 divisors, whose sum is σ = 128337150. Its totient is φ = 128337148.

The previous prime is 128337103. The next prime is 128337161. The reversal of 128337149 is 941733821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126405049 + 1932100 = 11243^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 128337149 - 2¹² = 128333053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128337049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64168574 + 64168575.

It is an arithmetic number, because the mean of its divisors is an integer number (64168575).

Almost surely, 2^128337149 is an apocalyptic number.

It is an amenable number.

128337149 is a deficient number, since it is larger than the sum of its proper divisors (1).

128337149 is an equidigital number, since it uses as much as digits as its factorization.

128337149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 128337149 is about 11328.5987218190. The cubic root of 128337149 is about 504.4105123666.

The spelling of 128337149 in words is "one hundred twenty-eight million, three hundred thirty-seven thousand, one hundred forty-nine".