83139164 has 6 divisors (see below), whose sum is σ = 145493544. Its totient is φ = 41569580.

The previous prime is 83139151. The next prime is 83139187. The reversal of 83139164 is 46193138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10392392 + ... + 10392399.

It is an arithmetic number, because the mean of its divisors is an integer number (24248924).

Almost surely, 2^83139164 is an apocalyptic number.

It is an amenable number.

83139164 is a deficient number, since it is larger than the sum of its proper divisors (62354380).

83139164 is a wasteful number, since it uses less digits than its factorization.

83139164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20784795 (or 20784793 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 83139164 is about 9118.0679971143. The cubic root of 83139164 is about 436.4507234697.

The spelling of 83139164 in words is "eighty-three million, one hundred thirty-nine thousand, one hundred sixty-four".