304152397 has 2 divisors, whose sum is σ = 304152398. Its totient is φ = 304152396.

The previous prime is 304152379. The next prime is 304152413. The reversal of 304152397 is 793251403.

Together with previous prime (304152379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293745321 + 10407076 = 17139^2 + 3226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304152397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304152347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152076198 + 152076199.

It is an arithmetic number, because the mean of its divisors is an integer number (152076199).

Almost surely, 2^304152397 is an apocalyptic number.

It is an amenable number.

304152397 is a deficient number, since it is larger than the sum of its proper divisors (1).

304152397 is an equidigital number, since it uses as much as digits as its factorization.

304152397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 304152397 is about 17439.9655102870. The cubic root of 304152397 is about 672.5074211349.

The spelling of 304152397 in words is "three hundred four million, one hundred fifty-two thousand, three hundred ninety-seven".