145394419 has 2 divisors, whose sum is σ = 145394420. Its totient is φ = 145394418.

The previous prime is 145394393. The next prime is 145394437. The reversal of 145394419 is 914493541.

145394419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145394419 - 2¹⁷ = 145263347 is a prime.

It is a super-2 number, since 2×145394419² = 42279074152695122, which contains 22 as substring.

It is equal to p_8199517 and since 145394419 and 8199517 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (145394219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72697209 + 72697210.

It is an arithmetic number, because the mean of its divisors is an integer number (72697210).

Almost surely, 2^145394419 is an apocalyptic number.

145394419 is a deficient number, since it is larger than the sum of its proper divisors (1).

145394419 is an equidigital number, since it uses as much as digits as its factorization.

145394419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 145394419 is about 12057.9608143334. The cubic root of 145394419 is about 525.8347042381.

The spelling of 145394419 in words is "one hundred forty-five million, three hundred ninety-four thousand, four hundred nineteen".