308146093 has 2 divisors, whose sum is σ = 308146094. Its totient is φ = 308146092.

The previous prime is 308146087. The next prime is 308146103. The reversal of 308146093 is 390641803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266440329 + 41705764 = 16323^2 + 6458^2 .

It is a cyclic number.

It is not a de Polignac number, because 308146093 - 2¹⁷ = 308015021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (308146193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154073046 + 154073047.

It is an arithmetic number, because the mean of its divisors is an integer number (154073047).

Almost surely, 2^308146093 is an apocalyptic number.

It is an amenable number.

308146093 is a deficient number, since it is larger than the sum of its proper divisors (1).

308146093 is an equidigital number, since it uses as much as digits as its factorization.

308146093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 308146093 is about 17554.0904919623. The cubic root of 308146093 is about 675.4381009622.

Adding to 308146093 its reverse (390641803), we get a palindrome (698787896).

The spelling of 308146093 in words is "three hundred eight million, one hundred forty-six thousand, ninety-three".