122939565 has 16 divisors (see below), whose sum is σ = 224803968. Its totient is φ = 56200896.

The previous prime is 122939543. The next prime is 122939569. The reversal of 122939565 is 565939221.

It is not a de Polignac number, because 122939565 - 2⁶ = 122939501 is a prime.

It is a super-2 number, since 2×122939565² = 30228273284778450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122939569) 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, 585322 + ... + 585531.

It is an arithmetic number, because the mean of its divisors is an integer number (14050248).

Almost surely, 2^122939565 is an apocalyptic number.

122939565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122939565 is a deficient number, since it is larger than the sum of its proper divisors (101864403).

122939565 is a wasteful number, since it uses less digits than its factorization.

122939565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170868.

The product of its digits is 145800, while the sum is 42.

The square root of 122939565 is about 11087.8115514289. The cubic root of 122939565 is about 497.2375188374.

The spelling of 122939565 in words is "one hundred twenty-two million, nine hundred thirty-nine thousand, five hundred sixty-five".