122081565 has 16 divisors (see below), whose sum is σ = 201632256. Its totient is φ = 63009600.

The previous prime is 122081563. The next prime is 122081579. The reversal of 122081565 is 565180221.

It is not a de Polignac number, because 122081565 - 2¹ = 122081563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122081563) 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, 130806 + ... + 131735.

It is an arithmetic number, because the mean of its divisors is an integer number (12602016).

Almost surely, 2^122081565 is an apocalyptic number.

122081565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122081565 is a deficient number, since it is larger than the sum of its proper divisors (79550691).

122081565 is a wasteful number, since it uses less digits than its factorization.

122081565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262580.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 122081565 is about 11049.0526743246. The cubic root of 122081565 is about 496.0780707083.

The spelling of 122081565 in words is "one hundred twenty-two million, eighty-one thousand, five hundred sixty-five".