122427647 has 4 divisors (see below), whose sum is σ = 126649320. Its totient is φ = 118205976.

The previous prime is 122427611. The next prime is 122427653. The reversal of 122427647 is 746724221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746724221 = 347 ⋅2151943.

It is a cyclic number.

It is not a de Polignac number, because 122427647 - 2⁸ = 122427391 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 (122427667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110793 + ... + 2110850.

It is an arithmetic number, because the mean of its divisors is an integer number (31662330).

Almost surely, 2^122427647 is an apocalyptic number.

122427647 is a deficient number, since it is larger than the sum of its proper divisors (4221673).

122427647 is an equidigital number, since it uses as much as digits as its factorization.

122427647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221672.

The product of its digits is 37632, while the sum is 35.

The square root of 122427647 is about 11064.7027524466. The cubic root of 122427647 is about 496.5463961644.

The spelling of 122427647 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, six hundred forty-seven".