124788947 has 4 divisors (see below), whose sum is σ = 126191160. Its totient is φ = 123386736.

The previous prime is 124788889. The next prime is 124788949. The reversal of 124788947 is 749887421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124788947 - 2⁸ = 124788691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124788895 and 124788904.

It is not an unprimeable number, because it can be changed into a prime (124788949) 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, 700973 + ... + 701150.

It is an arithmetic number, because the mean of its divisors is an integer number (31547790).

Almost surely, 2^124788947 is an apocalyptic number.

124788947 is a deficient number, since it is larger than the sum of its proper divisors (1402213).

124788947 is an equidigital number, since it uses as much as digits as its factorization.

124788947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402212.

The product of its digits is 903168, while the sum is 50.

The square root of 124788947 is about 11170.8973229549. The cubic root of 124788947 is about 499.7184374749.

The spelling of 124788947 in words is "one hundred twenty-four million, seven hundred eighty-eight thousand, nine hundred forty-seven".