145652289 has 8 divisors (see below), whose sum is σ = 194283552. Its totient is φ = 97061280.

The previous prime is 145652267. The next prime is 145652317. The reversal of 145652289 is 982256541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145652289 - 2⁵ = 145652257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145652289.

It is not an unprimeable number, because it can be changed into a prime (145652249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 17069.

It is an arithmetic number, because the mean of its divisors is an integer number (24285444).

Almost surely, 2^145652289 is an apocalyptic number.

It is an amenable number.

145652289 is a deficient number, since it is larger than the sum of its proper divisors (48631263).

145652289 is a wasteful number, since it uses less digits than its factorization.

145652289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20127.

The product of its digits is 172800, while the sum is 42.

The square root of 145652289 is about 12068.6490130420. The cubic root of 145652289 is about 526.1453922515.

The spelling of 145652289 in words is "one hundred forty-five million, six hundred fifty-two thousand, two hundred eighty-nine".