122547647 has 8 divisors (see below), whose sum is σ = 125783280. Its totient is φ = 119323840.

The previous prime is 122547641. The next prime is 122547673. The reversal of 122547647 is 746745221.

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

It is a cyclic number.

It is not a de Polignac number, because 122547647 - 2⁸ = 122547391 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 122547647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122547641) 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, 20429 + ... + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (15722910).

Almost surely, 2^122547647 is an apocalyptic number.

122547647 is a deficient number, since it is larger than the sum of its proper divisors (3235633).

122547647 is an equidigital number, since it uses as much as digits as its factorization.

122547647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913.

The product of its digits is 94080, while the sum is 38.

The square root of 122547647 is about 11070.1240733788. The cubic root of 122547647 is about 496.7085766075.

The spelling of 122547647 in words is "one hundred twenty-two million, five hundred forty-seven thousand, six hundred forty-seven".