12146947 has 16 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 10843200.

The previous prime is 12146917. The next prime is 12146951. The reversal of 12146947 is 74964121.

It is a cyclic number.

It is not a de Polignac number, because 12146947 - 2⁷ = 12146819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146917) 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 15 ways as a sum of consecutive naturals, for example, 23898 + ... + 24400.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^12146947 is an apocalyptic number.

12146947 is a deficient number, since it is larger than the sum of its proper divisors (1400573).

12146947 is a wasteful number, since it uses less digits than its factorization.

12146947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its digits is 12096, while the sum is 34.

The square root of 12146947 is about 3485.2470500669. The cubic root of 12146947 is about 229.8735726096.

The spelling of 12146947 in words is "twelve million, one hundred forty-six thousand, nine hundred forty-seven".