261282522 has 16 divisors (see below), whose sum is σ = 525696192. Its totient is φ = 86572320.

The previous prime is 261282521. The next prime is 261282533. The reversal of 261282522 is 225282162.

261282522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 261282522.

It is not an unprimeable number, because it can be changed into a prime (261282521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129379 + ... + 131382.

It is an arithmetic number, because the mean of its divisors is an integer number (32856012).

Almost surely, 2^261282522 is an apocalyptic number.

261282522 is an abundant number, since it is smaller than the sum of its proper divisors (264413670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261282522 is a wasteful number, since it uses less digits than its factorization.

261282522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260933.

The product of its digits is 7680, while the sum is 30.

The square root of 261282522 is about 16164.2358928593. The cubic root of 261282522 is about 639.2981580306.

The spelling of 261282522 in words is "two hundred sixty-one million, two hundred eighty-two thousand, five hundred twenty-two".