83120018 has 8 divisors (see below), whose sum is σ = 126182448. Its totient is φ = 41059204.

The previous prime is 83119991. The next prime is 83120027. The reversal of 83120018 is 81002138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83119975 and 83120002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250196 + ... + 250527.

It is an arithmetic number, because the mean of its divisors is an integer number (15772806).

Almost surely, 2^83120018 is an apocalyptic number.

83120018 is a deficient number, since it is larger than the sum of its proper divisors (43062430).

83120018 is a wasteful number, since it uses less digits than its factorization.

83120018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500808.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 83120018 is about 9117.0180431981. The cubic root of 83120018 is about 436.4172176918.

The spelling of 83120018 in words is "eighty-three million, one hundred twenty thousand, eighteen".