83152321 has 16 divisors (see below), whose sum is σ = 101160576. Its totient is φ = 66721536.

The previous prime is 83152249. The next prime is 83152339. The reversal of 83152321 is 12325138.

It is not a de Polignac number, because 83152321 - 2¹¹ = 83150273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83152351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21670 + ... + 25216.

It is an arithmetic number, because the mean of its divisors is an integer number (6322536).

Almost surely, 2^83152321 is an apocalyptic number.

It is an amenable number.

83152321 is a deficient number, since it is larger than the sum of its proper divisors (18008255).

83152321 is a wasteful number, since it uses less digits than its factorization.

83152321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its digits is 1440, while the sum is 25.

The square root of 83152321 is about 9118.7894481669. The cubic root of 83152321 is about 436.4737454287.

Adding to 83152321 its reverse (12325138), we get a palindrome (95477459).

The spelling of 83152321 in words is "eighty-three million, one hundred fifty-two thousand, three hundred twenty-one".