301971149 has 2 divisors, whose sum is σ = 301971150. Its totient is φ = 301971148.

The previous prime is 301971139. The next prime is 301971151. The reversal of 301971149 is 941179103.

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., 264062500 + 37908649 = 16250^2 + 6157^2 .

It is a cyclic number.

It is not a de Polignac number, because 301971149 - 2⁴ = 301971133 is a prime.

It is a Sophie Germain prime.

Together with 301971151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301971139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150985574 + 150985575.

It is an arithmetic number, because the mean of its divisors is an integer number (150985575).

Almost surely, 2^301971149 is an apocalyptic number.

It is an amenable number.

301971149 is a deficient number, since it is larger than the sum of its proper divisors (1).

301971149 is an equidigital number, since it uses as much as digits as its factorization.

301971149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 301971149 is about 17377.3170829101. The cubic root of 301971149 is about 670.8959195889.

The spelling of 301971149 in words is "three hundred one million, nine hundred seventy-one thousand, one hundred forty-nine".