122724047 has 2 divisors, whose sum is σ = 122724048. Its totient is φ = 122724046.

The previous prime is 122724031. The next prime is 122724127. The reversal of 122724047 is 740427221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122724047 - 2⁴ = 122724031 is a prime.

It is a super-2 number, since 2×122724047² = 30122383424116418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122724347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61362023 + 61362024.

It is an arithmetic number, because the mean of its divisors is an integer number (61362024).

Almost surely, 2^122724047 is an apocalyptic number.

122724047 is a deficient number, since it is larger than the sum of its proper divisors (1).

122724047 is an equidigital number, since it uses as much as digits as its factorization.

122724047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 122724047 is about 11078.0885986708. The cubic root of 122724047 is about 496.9467897643.

The spelling of 122724047 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, forty-seven".