82144311 has 4 divisors (see below), whose sum is σ = 109525752. Its totient is φ = 54762872.

The previous prime is 82144303. The next prime is 82144313. The reversal of 82144311 is 11344128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82144311 - 2³ = 82144303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82144313) 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, 13690716 + ... + 13690721.

It is an arithmetic number, because the mean of its divisors is an integer number (27381438).

Almost surely, 2^82144311 is an apocalyptic number.

82144311 is a deficient number, since it is larger than the sum of its proper divisors (27381441).

82144311 is a wasteful number, since it uses less digits than its factorization.

82144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27381440.

The product of its digits is 768, while the sum is 24.

The square root of 82144311 is about 9063.3498773908. The cubic root of 82144311 is about 434.7028595668.

Adding to 82144311 its reverse (11344128), we get a palindrome (93488439).

The spelling of 82144311 in words is "eighty-two million, one hundred forty-four thousand, three hundred eleven".