82874155 has 16 divisors (see below), whose sum is σ = 122399424. Its totient is φ = 52456320.

The previous prime is 82874153. The next prime is 82874213. The reversal of 82874155 is 55147828.

It is not a de Polignac number, because 82874155 - 2¹ = 82874153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82874153) 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, 90616 + ... + 91525.

It is an arithmetic number, because the mean of its divisors is an integer number (7649964).

Almost surely, 2^82874155 is an apocalyptic number.

82874155 is a deficient number, since it is larger than the sum of its proper divisors (39525269).

82874155 is a wasteful number, since it uses less digits than its factorization.

82874155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182166.

The product of its digits is 89600, while the sum is 40.

The square root of 82874155 is about 9103.5243175377. The cubic root of 82874155 is about 435.9864958784.

The spelling of 82874155 in words is "eighty-two million, eight hundred seventy-four thousand, one hundred fifty-five".