83142500 has 60 divisors (see below), whose sum is σ = 207833472. Its totient is φ = 28500000.

The previous prime is 83142497. The next prime is 83142509. The reversal of 83142500 is 524138.

It is not an unprimeable number, because it can be changed into a prime (83142509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15125 + ... + 19875.

Almost surely, 2^83142500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103916736).

83142500 is an abundant number, since it is smaller than the sum of its proper divisors (124690972).

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

83142500 is a wasteful number, since it uses less digits than its factorization.

83142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 83142500 is about 9118.2509287692. The cubic root of 83142500 is about 436.4565609919.

Adding to 83142500 its reverse (524138), we get a palindrome (83666638).

The spelling of 83142500 in words is "eighty-three million, one hundred forty-two thousand, five hundred".