82380133 has 4 divisors (see below), whose sum is σ = 89869248. Its totient is φ = 74891020.

The previous prime is 82380127. The next prime is 82380161. The reversal of 82380133 is 33108328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82380133 - 2⁵ = 82380101 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 (82387133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3744541 + ... + 3744562.

It is an arithmetic number, because the mean of its divisors is an integer number (22467312).

Almost surely, 2^82380133 is an apocalyptic number.

It is an amenable number.

82380133 is a deficient number, since it is larger than the sum of its proper divisors (7489115).

82380133 is a wasteful number, since it uses less digits than its factorization.

82380133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489114.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 82380133 is about 9076.3502025869. The cubic root of 82380133 is about 435.1184475086.

The spelling of 82380133 in words is "eighty-two million, three hundred eighty thousand, one hundred thirty-three".