122647047 has 16 divisors (see below), whose sum is σ = 165369600. Its totient is φ = 80849600.

The previous prime is 122647043. The next prime is 122647079. The reversal of 122647047 is 740746221.

It is a cyclic number.

It is not a de Polignac number, because 122647047 - 2² = 122647043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122646999 and 122647017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122647043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204454 + ... + 205052.

It is an arithmetic number, because the mean of its divisors is an integer number (10335600).

Almost surely, 2^122647047 is an apocalyptic number.

122647047 is a deficient number, since it is larger than the sum of its proper divisors (42722553).

122647047 is a wasteful number, since it uses less digits than its factorization.

122647047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 122647047 is about 11074.6127246058. The cubic root of 122647047 is about 496.8428359228.

The spelling of 122647047 in words is "one hundred twenty-two million, six hundred forty-seven thousand, forty-seven".