83271140 has 24 divisors (see below), whose sum is σ = 175116480. Its totient is φ = 33261408.

The previous prime is 83271137. The next prime is 83271157. The reversal of 83271140 is 4117238.

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, 13931 + ... + 18989.

It is an arithmetic number, because the mean of its divisors is an integer number (7296520).

Almost surely, 2^83271140 is an apocalyptic number.

It is an amenable number.

83271140 is an abundant number, since it is smaller than the sum of its proper divisors (91845340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83271140 is a wasteful number, since it uses less digits than its factorization.

83271140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891 (or 5889 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 83271140 is about 9125.3021867772. The cubic root of 83271140 is about 436.6815435627.

Adding to 83271140 its reverse (4117238), we get a palindrome (87388378).

The spelling of 83271140 in words is "eighty-three million, two hundred seventy-one thousand, one hundred forty".