124722947 has 2 divisors, whose sum is σ = 124722948. Its totient is φ = 124722946.

The previous prime is 124722907. The next prime is 124722971. The reversal of 124722947 is 749227421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124722947 - 2⁸ = 124722691 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124722947.

It is not a weakly prime, because it can be changed into another prime (124722907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62361473 + 62361474.

It is an arithmetic number, because the mean of its divisors is an integer number (62361474).

Almost surely, 2^124722947 is an apocalyptic number.

124722947 is a deficient number, since it is larger than the sum of its proper divisors (1).

124722947 is an equidigital number, since it uses as much as digits as its factorization.

124722947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 124722947 is about 11167.9428275757. The cubic root of 124722947 is about 499.6303227448.

The spelling of 124722947 in words is "one hundred twenty-four million, seven hundred twenty-two thousand, nine hundred forty-seven".