145079321 has 8 divisors (see below), whose sum is σ = 148079520. Its totient is φ = 142103808.

The previous prime is 145079281. The next prime is 145079369. The reversal of 145079321 is 123970541.

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

It is a cyclic number.

It is not a de Polignac number, because 145079321 - 2¹⁴ = 145062937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145079371) 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, 5945 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (18509940).

Almost surely, 2^145079321 is an apocalyptic number.

It is an amenable number.

145079321 is a deficient number, since it is larger than the sum of its proper divisors (3000199).

145079321 is a wasteful number, since it uses less digits than its factorization.

145079321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12343.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 145079321 is about 12044.8877537319. The cubic root of 145079321 is about 525.4545674514.

The spelling of 145079321 in words is "one hundred forty-five million, seventy-nine thousand, three hundred twenty-one".