305419 has 2 divisors, whose sum is σ = 305420. Its totient is φ = 305418.

The previous prime is 305413. The next prime is 305423. The reversal of 305419 is 914503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 305419 - 2³ = 305411 is a prime.

It is a super-2 number, since 2×305419² = 186561531122, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 305419.

It is not a weakly prime, because it can be changed into another prime (305411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152709 + 152710.

It is an arithmetic number, because the mean of its divisors is an integer number (152710).

2³⁰⁵⁴¹⁹ is an apocalyptic number.

305419 is a deficient number, since it is larger than the sum of its proper divisors (1).

305419 is an equidigital number, since it uses as much as digits as its factorization.

305419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 305419 is about 552.6472654415. The cubic root of 305419 is about 67.3439651436.

The spelling of 305419 in words is "three hundred five thousand, four hundred nineteen".