82158959 has 8 divisors (see below), whose sum is σ = 85008000. Its totient is φ = 79322400.

The previous prime is 82158931. The next prime is 82158991. The reversal of 82158959 is 95985128.

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

It is a cyclic number.

It is not a de Polignac number, because 82158959 - 2¹⁶ = 82093423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82158919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11417 + ... + 17165.

It is an arithmetic number, because the mean of its divisors is an integer number (10626000).

Almost surely, 2^82158959 is an apocalyptic number.

82158959 is a deficient number, since it is larger than the sum of its proper divisors (2849041).

82158959 is a wasteful number, since it uses less digits than its factorization.

82158959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241.

The product of its digits is 259200, while the sum is 47.

The square root of 82158959 is about 9064.1579311042. The cubic root of 82158959 is about 434.7286968158.

The spelling of 82158959 in words is "eighty-two million, one hundred fifty-eight thousand, nine hundred fifty-nine".