82125122 has 4 divisors (see below), whose sum is σ = 123187686. Its totient is φ = 41062560.

The previous prime is 82125119. The next prime is 82125133. The reversal of 82125122 is 22152128.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 79405921 + 2719201 = 8911^2 + 1649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20531279 + ... + 20531282.

Almost surely, 2^82125122 is an apocalyptic number.

82125122 is a deficient number, since it is larger than the sum of its proper divisors (41062564).

82125122 is a wasteful number, since it uses less digits than its factorization.

82125122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41062563.

The product of its digits is 640, while the sum is 23.

The square root of 82125122 is about 9062.2912113880. The cubic root of 82125122 is about 434.6690079112.

The spelling of 82125122 in words is "eighty-two million, one hundred twenty-five thousand, one hundred twenty-two".