309420359 has 2 divisors, whose sum is σ = 309420360. Its totient is φ = 309420358.

The previous prime is 309420341. The next prime is 309420373. The reversal of 309420359 is 953024903.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309420359 is a prime.

It is equal to p_16734860 and since 309420359 and 16734860 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (309420379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154710179 + 154710180.

It is an arithmetic number, because the mean of its divisors is an integer number (154710180).

Almost surely, 2^309420359 is an apocalyptic number.

309420359 is a deficient number, since it is larger than the sum of its proper divisors (1).

309420359 is an equidigital number, since it uses as much as digits as its factorization.

309420359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 309420359 is about 17590.3484615854. The cubic root of 309420359 is about 676.3678592314.

The spelling of 309420359 in words is "three hundred nine million, four hundred twenty thousand, three hundred fifty-nine".