122432561 has 8 divisors (see below), whose sum is σ = 129528000. Its totient is φ = 115402320.

The previous prime is 122432537. The next prime is 122432573. The reversal of 122432561 is 165234221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122432561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122432561.

It is not an unprimeable number, because it can be changed into a prime (122432501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12410 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (16191000).

Almost surely, 2^122432561 is an apocalyptic number.

It is an amenable number.

122432561 is a deficient number, since it is larger than the sum of its proper divisors (7095439).

122432561 is a wasteful number, since it uses less digits than its factorization.

122432561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32599.

The product of its digits is 2880, while the sum is 26.

The square root of 122432561 is about 11064.9248076975. The cubic root of 122432561 is about 496.5530395340.

Adding to 122432561 its reverse (165234221), we get a palindrome (287666782).

The spelling of 122432561 in words is "one hundred twenty-two million, four hundred thirty-two thousand, five hundred sixty-one".