145730419 has 2 divisors, whose sum is σ = 145730420. Its totient is φ = 145730418.

The previous prime is 145730401. The next prime is 145730447. The reversal of 145730419 is 914037541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145730419 - 2⁹ = 145729907 is a prime.

It is a super-2 number, since 2×145730419² = 42474710043831122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145730449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72865209 + 72865210.

It is an arithmetic number, because the mean of its divisors is an integer number (72865210).

Almost surely, 2^145730419 is an apocalyptic number.

145730419 is a deficient number, since it is larger than the sum of its proper divisors (1).

145730419 is an equidigital number, since it uses as much as digits as its factorization.

145730419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 145730419 is about 12071.8854782507. The cubic root of 145730419 is about 526.2394527745.

The spelling of 145730419 in words is "one hundred forty-five million, seven hundred thirty thousand, four hundred nineteen".