82148747 has 4 divisors (see below), whose sum is σ = 82245240. Its totient is φ = 82052256.

The previous prime is 82148741. The next prime is 82148749. The reversal of 82148747 is 74784128.

It is a happy number.

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 82148747 - 2¹² = 82144651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82148741) 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, 46958 + ... + 48675.

It is an arithmetic number, because the mean of its divisors is an integer number (20561310).

Almost surely, 2^82148747 is an apocalyptic number.

82148747 is a deficient number, since it is larger than the sum of its proper divisors (96493).

82148747 is an equidigital number, since it uses as much as digits as its factorization.

82148747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96492.

The product of its digits is 100352, while the sum is 41.

The square root of 82148747 is about 9063.5945959647. The cubic root of 82148747 is about 434.7106844430.

It can be divided in two parts, 8214 and 8747, that added together give a palindrome (16961).

The spelling of 82148747 in words is "eighty-two million, one hundred forty-eight thousand, seven hundred forty-seven".