122413561 has 16 divisors (see below), whose sum is σ = 132580800. Its totient is φ = 112650048.

The previous prime is 122413559. The next prime is 122413573. The reversal of 122413561 is 165314221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122413561 - 2¹ = 122413559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122413541) 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 15 ways as a sum of consecutive naturals, for example, 219495 + ... + 220051.

It is an arithmetic number, because the mean of its divisors is an integer number (8286300).

Almost surely, 2^122413561 is an apocalyptic number.

It is an amenable number.

122413561 is a deficient number, since it is larger than the sum of its proper divisors (10167239).

122413561 is a wasteful number, since it uses less digits than its factorization.

122413561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its digits is 1440, while the sum is 25.

The square root of 122413561 is about 11064.0662055141. The cubic root of 122413561 is about 496.5273519344.

Adding to 122413561 its reverse (165314221), we get a palindrome (287727782).

The spelling of 122413561 in words is "one hundred twenty-two million, four hundred thirteen thousand, five hundred sixty-one".