122401517 has 8 divisors (see below), whose sum is σ = 140592000. Its totient is φ = 104387184.

The previous prime is 122401507. The next prime is 122401519. The reversal of 122401517 is 715104221.

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-122401517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122401492 and 122401501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122401519) 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, 42542 + ... + 45327.

It is an arithmetic number, because the mean of its divisors is an integer number (17574000).

Almost surely, 2^122401517 is an apocalyptic number.

It is an amenable number.

122401517 is a deficient number, since it is larger than the sum of its proper divisors (18190483).

122401517 is an equidigital number, since it uses as much as digits as its factorization.

122401517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88075.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 122401517 is about 11063.5219076025. The cubic root of 122401517 is about 496.5110673236.

Adding to 122401517 its reverse (715104221), we get a palindrome (837505738).

The spelling of 122401517 in words is "one hundred twenty-two million, four hundred one thousand, five hundred seventeen".