82547157 has 16 divisors (see below), whose sum is σ = 137221632. Its totient is φ = 42881520.

The previous prime is 82547147. The next prime is 82547173. The reversal of 82547157 is 75174528.

It is not a de Polignac number, because 82547157 - 2⁶ = 82547093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82547147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178443 + ... + 178904.

It is an arithmetic number, because the mean of its divisors is an integer number (8576352).

Almost surely, 2^82547157 is an apocalyptic number.

It is an amenable number.

82547157 is a deficient number, since it is larger than the sum of its proper divisors (54674475).

82547157 is a wasteful number, since it uses less digits than its factorization.

82547157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357368.

The product of its digits is 78400, while the sum is 39.

The square root of 82547157 is about 9085.5465988569. The cubic root of 82547157 is about 435.4123135187.

Multiplying 82547157 by its sum of digits (39), we get a palindrome (3219339123).

It can be divided in two parts, 825471 and 57, that added together give a palindrome (825528).

The spelling of 82547157 in words is "eighty-two million, five hundred forty-seven thousand, one hundred fifty-seven".