145830469 has 2 divisors, whose sum is σ = 145830470. Its totient is φ = 145830468.

The previous prime is 145830439. The next prime is 145830493. The reversal of 145830469 is 964038541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136002244 + 9828225 = 11662^2 + 3135^2 .

It is a cyclic number.

It is not a de Polignac number, because 145830469 - 2⁷ = 145830341 is a prime.

It is a super-2 number, since 2×145830469² = 42533051377519922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145830439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72915234 + 72915235.

It is an arithmetic number, because the mean of its divisors is an integer number (72915235).

Almost surely, 2^145830469 is an apocalyptic number.

It is an amenable number.

145830469 is a deficient number, since it is larger than the sum of its proper divisors (1).

145830469 is an equidigital number, since it uses as much as digits as its factorization.

145830469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 145830469 is about 12076.0286932418. The cubic root of 145830469 is about 526.3598536565.

The spelling of 145830469 in words is "one hundred forty-five million, eight hundred thirty thousand, four hundred sixty-nine".