145774459 has 2 divisors, whose sum is σ = 145774460. Its totient is φ = 145774458.

The previous prime is 145774457. The next prime is 145774469. The reversal of 145774459 is 954477541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145774459 - 2¹ = 145774457 is a prime.

Together with 145774457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145774457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72887229 + 72887230.

It is an arithmetic number, because the mean of its divisors is an integer number (72887230).

Almost surely, 2^145774459 is an apocalyptic number.

145774459 is a deficient number, since it is larger than the sum of its proper divisors (1).

145774459 is an equidigital number, since it uses as much as digits as its factorization.

145774459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The square root of 145774459 is about 12073.7094134321. The cubic root of 145774459 is about 526.2924576115.

The spelling of 145774459 in words is "one hundred forty-five million, seven hundred seventy-four thousand, four hundred fifty-nine".