122459013447 has 4 divisors (see below), whose sum is σ = 163278684600. Its totient is φ = 81639342296.

The previous prime is 122459013407. The next prime is 122459013461. The reversal of 122459013447 is 744310954221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122459013447 - 2⁸ = 122459013191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122459013399 and 122459013408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122459013407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20409835572 + ... + 20409835577.

It is an arithmetic number, because the mean of its divisors is an integer number (40819671150).

Almost surely, 2^122459013447 is an apocalyptic number.

122459013447 is a deficient number, since it is larger than the sum of its proper divisors (40819671153).

122459013447 is an equidigital number, since it uses as much as digits as its factorization.

122459013447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40819671152.

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 122459013447 its reverse (744310954221), we get a palindrome (866769967668).

The spelling of 122459013447 in words is "one hundred twenty-two billion, four hundred fifty-nine million, thirteen thousand, four hundred forty-seven".