9148947 has 4 divisors (see below), whose sum is σ = 12198600. Its totient is φ = 6099296.

The previous prime is 9148927. The next prime is 9148957. The reversal of 9148947 is 7498419.

9148947 is nontrivially palindromic in base 11.

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 9148947 - 2¹² = 9144851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9148899 and 9148908.

It is not an unprimeable number, because it can be changed into a prime (9148927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524822 + ... + 1524827.

It is an arithmetic number, because the mean of its divisors is an integer number (3049650).

Almost surely, 2^9148947 is an apocalyptic number.

9148947 is a deficient number, since it is larger than the sum of its proper divisors (3049653).

9148947 is a wasteful number, since it uses less digits than its factorization.

9148947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049652.

The product of its digits is 72576, while the sum is 42.

The square root of 9148947 is about 3024.7226319119. The cubic root of 9148947 is about 209.1495994780.

The spelling of 9148947 in words is "nine million, one hundred forty-eight thousand, nine hundred forty-seven".