320234545 has 8 divisors (see below), whose sum is σ = 393218496. Its totient is φ = 250229616.

The previous prime is 320234513. The next prime is 320234573. The reversal of 320234545 is 545432023.

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 320234545 - 2⁵ = 320234513 is a prime.

It is a super-2 number, since 2×320234545² = 205100327622714050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744517 + ... + 744946.

It is an arithmetic number, because the mean of its divisors is an integer number (49152312).

Almost surely, 2^320234545 is an apocalyptic number.

It is an amenable number.

320234545 is a deficient number, since it is larger than the sum of its proper divisors (72983951).

320234545 is a wasteful number, since it uses less digits than its factorization.

320234545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489511.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 320234545 is about 17895.0983512246. The cubic root of 320234545 is about 684.1574488210.

Adding to 320234545 its reverse (545432023), we get a palindrome (865666568).

The spelling of 320234545 in words is "three hundred twenty million, two hundred thirty-four thousand, five hundred forty-five".