245430319 has 2 divisors, whose sum is σ = 245430320. Its totient is φ = 245430318.

The previous prime is 245430293. The next prime is 245430329. The reversal of 245430319 is 913034542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245430319 - 2⁷ = 245430191 is a prime.

It is a super-2 number, since 2×245430319² = 120472082968883522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245430329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122715159 + 122715160.

It is an arithmetic number, because the mean of its divisors is an integer number (122715160).

Almost surely, 2^245430319 is an apocalyptic number.

245430319 is a deficient number, since it is larger than the sum of its proper divisors (1).

245430319 is an equidigital number, since it uses as much as digits as its factorization.

245430319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 245430319 is about 15666.2158481236. The cubic root of 245430319 is about 626.0986066500.

The spelling of 245430319 in words is "two hundred forty-five million, four hundred thirty thousand, three hundred nineteen".