83139532 has 24 divisors (see below), whose sum is σ = 167810720. Its totient is φ = 35303040.

The previous prime is 83139517. The next prime is 83139533. The reversal of 83139532 is 23593138.

It is not an unprimeable number, because it can be changed into a prime (83139533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10569 + ... + 16672.

Almost surely, 2^83139532 is an apocalyptic number.

It is an amenable number.

83139532 is an abundant number, since it is smaller than the sum of its proper divisors (84671188).

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

83139532 is a wasteful number, since it uses less digits than its factorization.

83139532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27361 (or 27359 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 83139532 is about 9118.0881768055. The cubic root of 83139532 is about 436.4513674246.

The spelling of 83139532 in words is "eighty-three million, one hundred thirty-nine thousand, five hundred thirty-two".