308744108149 has 2 divisors, whose sum is σ = 308744108150. Its totient is φ = 308744108148.

The previous prime is 308744108117. The next prime is 308744108207. The reversal of 308744108149 is 941801447803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308635802500 + 108305649 = 555550^2 + 10407^2 .

It is an emirp because it is prime and its reverse (941801447803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 308744108149 - 2⁵ = 308744108117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (308744103149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154372054074 + 154372054075.

It is an arithmetic number, because the mean of its divisors is an integer number (154372054075).

Almost surely, 2^308744108149 is an apocalyptic number.

It is an amenable number.

308744108149 is a deficient number, since it is larger than the sum of its proper divisors (1).

308744108149 is an equidigital number, since it uses as much as digits as its factorization.

308744108149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 308744108149 in words is "three hundred eight billion, seven hundred forty-four million, one hundred eight thousand, one hundred forty-nine".