149666339 has 2 divisors, whose sum is σ = 149666340. Its totient is φ = 149666338.

The previous prime is 149666333. The next prime is 149666383. The reversal of 149666339 is 933666941.

It is a weak prime.

It is an emirp because it is prime and its reverse (933666941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149666339 - 2²⁴ = 132889123 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 149666293 and 149666302.

It is not a weakly prime, because it can be changed into another prime (149666333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74833169 + 74833170.

It is an arithmetic number, because the mean of its divisors is an integer number (74833170).

Almost surely, 2^149666339 is an apocalyptic number.

149666339 is a deficient number, since it is larger than the sum of its proper divisors (1).

149666339 is an equidigital number, since it uses as much as digits as its factorization.

149666339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 47.

The square root of 149666339 is about 12233.8194771707. The cubic root of 149666339 is about 530.9350279834.

The spelling of 149666339 in words is "one hundred forty-nine million, six hundred sixty-six thousand, three hundred thirty-nine".