122481647 has 4 divisors (see below), whose sum is σ = 127806960. Its totient is φ = 117156336.

The previous prime is 122481643. The next prime is 122481649. The reversal of 122481647 is 746184221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746184221 = 103 ⋅7244507.

It is a cyclic number.

It is not a de Polignac number, because 122481647 - 2² = 122481643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122481643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662622 + ... + 2662667.

It is an arithmetic number, because the mean of its divisors is an integer number (31951740).

Almost surely, 2^122481647 is an apocalyptic number.

122481647 is a deficient number, since it is larger than the sum of its proper divisors (5325313).

122481647 is an equidigital number, since it uses as much as digits as its factorization.

122481647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325312.

The product of its digits is 21504, while the sum is 35.

The square root of 122481647 is about 11067.1426755057. The cubic root of 122481647 is about 496.6193904723.

The spelling of 122481647 in words is "one hundred twenty-two million, four hundred eighty-one thousand, six hundred forty-seven".