82150271 has 4 divisors (see below), whose sum is σ = 93886032. Its totient is φ = 70414512.

The previous prime is 82150267. The next prime is 82150291. The reversal of 82150271 is 17205128.

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

It is not a de Polignac number, because 82150271 - 2² = 82150267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82150271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82150291) 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, 5867870 + ... + 5867883.

It is an arithmetic number, because the mean of its divisors is an integer number (23471508).

Almost surely, 2^82150271 is an apocalyptic number.

82150271 is a deficient number, since it is larger than the sum of its proper divisors (11735761).

82150271 is a wasteful number, since it uses less digits than its factorization.

82150271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11735760.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 82150271 is about 9063.6786681788. The cubic root of 82150271 is about 434.7133726357.

Adding to 82150271 its reverse (17205128), we get a palindrome (99355399).

The spelling of 82150271 in words is "eighty-two million, one hundred fifty thousand, two hundred seventy-one".