145058309 has 24 divisors (see below), whose sum is σ = 170069760. Its totient is φ = 123342560.

The previous prime is 145058279. The next prime is 145058311. The reversal of 145058309 is 903850541.

It is not a de Polignac number, because 145058309 - 2²⁴ = 128281093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145058339) 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 in 23 ways as a sum of consecutive naturals, for example, 130247 + ... + 131355.

It is an arithmetic number, because the mean of its divisors is an integer number (7086240).

Almost surely, 2^145058309 is an apocalyptic number.

It is an amenable number.

145058309 is a deficient number, since it is larger than the sum of its proper divisors (25011451).

145058309 is a wasteful number, since it uses less digits than its factorization.

145058309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 145058309 is about 12044.0154848788. The cubic root of 145058309 is about 525.4291988361.

The spelling of 145058309 in words is "one hundred forty-five million, fifty-eight thousand, three hundred nine".