83143950 has 24 divisors (see below), whose sum is σ = 206197368. Its totient is φ = 22171680.

The previous prime is 83143939. The next prime is 83143999. The reversal of 83143950 is 5934138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276997 + ... + 277296.

It is an arithmetic number, because the mean of its divisors is an integer number (8591557).

Almost surely, 2^83143950 is an apocalyptic number.

83143950 is an abundant number, since it is smaller than the sum of its proper divisors (123053418).

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

83143950 is a wasteful number, since it uses less digits than its factorization.

83143950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554308 (or 554303 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 83143950 is about 9118.3304392855. The cubic root of 83143950 is about 436.4590982355.

The spelling of 83143950 in words is "eighty-three million, one hundred forty-three thousand, nine hundred fifty".