83032281 has 6 divisors (see below), whose sum is σ = 119935530. Its totient is φ = 55354848.

The previous prime is 83032273. The next prime is 83032289. The reversal of 83032281 is 18223038.

It is an interprime number because it is at equal distance from previous prime (83032273) and next prime (83032289).

It can be written as a sum of positive squares in only one way, i.e., 53056656 + 29975625 = 7284^2 + 5475^2 .

It is not a de Polignac number, because 83032281 - 2³ = 83032273 is a prime.

It is a super-2 number, since 2×83032281² = 13788719376125922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83032289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4612896 + ... + 4612913.

It is an arithmetic number, because the mean of its divisors is an integer number (19989255).

Almost surely, 2^83032281 is an apocalyptic number.

It is an amenable number.

83032281 is a deficient number, since it is larger than the sum of its proper divisors (36903249).

83032281 is a wasteful number, since it uses less digits than its factorization.

83032281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9225815 (or 9225812 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 83032281 is about 9112.2050569552. The cubic root of 83032281 is about 436.2636108210.

The spelling of 83032281 in words is "eighty-three million, thirty-two thousand, two hundred eighty-one".