82153331 has 8 divisors (see below), whose sum is σ = 88670400. Its totient is φ = 75664512.

The previous prime is 82153301. The next prime is 82153361. The reversal of 82153331 is 13335128.

It is an interprime number because it is at equal distance from previous prime (82153301) and next prime (82153361).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82153331 is a prime.

It is a super-2 number, since 2×82153331² = 13498339588791122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82153331.

It is not an unprimeable number, because it can be changed into a prime (82153301) 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, 806 + ... + 12843.

It is an arithmetic number, because the mean of its divisors is an integer number (11083800).

Almost surely, 2^82153331 is an apocalyptic number.

82153331 is a deficient number, since it is larger than the sum of its proper divisors (6517069).

82153331 is a wasteful number, since it uses less digits than its factorization.

82153331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125.

The product of its digits is 2160, while the sum is 26.

The square root of 82153331 is about 9063.8474722383. The cubic root of 82153331 is about 434.7187700875.

Adding to 82153331 its reverse (13335128), we get a palindrome (95488459).

The spelling of 82153331 in words is "eighty-two million, one hundred fifty-three thousand, three hundred thirty-one".