82153999 has 8 divisors (see below), whose sum is σ = 88492032. Its totient is φ = 76046520.

The previous prime is 82153987. The next prime is 82154027. The reversal of 82153999 is 99935128.

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 82153999 - 2⁷ = 82153871 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 (82153399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56899 + ... + 58324.

It is an arithmetic number, because the mean of its divisors is an integer number (11061504).

Almost surely, 2^82153999 is an apocalyptic number.

82153999 is a deficient number, since it is larger than the sum of its proper divisors (6338033).

82153999 is a wasteful number, since it uses less digits than its factorization.

82153999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115277.

The product of its digits is 174960, while the sum is 46.

The square root of 82153999 is about 9063.8843218567. The cubic root of 82153999 is about 434.7199483370.

The spelling of 82153999 in words is "eighty-two million, one hundred fifty-three thousand, nine hundred ninety-nine".