82144645 has 8 divisors (see below), whose sum is σ = 107534880. Its totient is φ = 59741520.

The previous prime is 82144639. The next prime is 82144651. The reversal of 82144645 is 54644128.

It is an interprime number because it is at equal distance from previous prime (82144639) and next prime (82144651).

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

It is not a de Polignac number, because 82144645 - 2⁹ = 82144133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82144645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746715 + ... + 746824.

It is an arithmetic number, because the mean of its divisors is an integer number (13441860).

Almost surely, 2^82144645 is an apocalyptic number.

It is an amenable number.

82144645 is a deficient number, since it is larger than the sum of its proper divisors (25390235).

82144645 is a wasteful number, since it uses less digits than its factorization.

82144645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493555.

The product of its digits is 30720, while the sum is 34.

The square root of 82144645 is about 9063.3683032303. The cubic root of 82144645 is about 434.7034487355.

The spelling of 82144645 in words is "eighty-two million, one hundred forty-four thousand, six hundred forty-five".