82153975 has 12 divisors (see below), whose sum is σ = 103794696. Its totient is φ = 64482080.

The previous prime is 82153961. The next prime is 82153987. The reversal of 82153975 is 57935128.

It is not a de Polignac number, because 82153975 - 2¹⁹ = 81629687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29677 + ... + 32326.

It is an arithmetic number, because the mean of its divisors is an integer number (8649558).

Almost surely, 2^82153975 is an apocalyptic number.

82153975 is a deficient number, since it is larger than the sum of its proper divisors (21640721).

82153975 is a wasteful number, since it uses less digits than its factorization.

82153975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62066 (or 62061 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 82153975 is about 9063.8829979209. The cubic root of 82153975 is about 434.7199060048.

The spelling of 82153975 in words is "eighty-two million, one hundred fifty-three thousand, nine hundred seventy-five".