83518459 has 2 divisors, whose sum is σ = 83518460. Its totient is φ = 83518458.

The previous prime is 83518447. The next prime is 83518489. The reversal of 83518459 is 95481538.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83518459 - 2¹³ = 83510267 is a prime.

It is not a weakly prime, because it can be changed into another prime (83518439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41759229 + 41759230.

It is an arithmetic number, because the mean of its divisors is an integer number (41759230).

Almost surely, 2^83518459 is an apocalyptic number.

83518459 is a deficient number, since it is larger than the sum of its proper divisors (1).

83518459 is an equidigital number, since it uses as much as digits as its factorization.

83518459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 83518459 is about 9138.8434169757. The cubic root of 83518459 is about 437.1134374838.

The spelling of 83518459 in words is "eighty-three million, five hundred eighteen thousand, four hundred fifty-nine".