11947146 has 16 divisors (see below), whose sum is σ = 24300000. Its totient is φ = 3914768.

The previous prime is 11947129. The next prime is 11947147. The reversal of 11947146 is 64174911.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11947147) 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 7 ways as a sum of consecutive naturals, for example, 16521 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (1518750).

Almost surely, 2^11947146 is an apocalyptic number.

11947146 is an abundant number, since it is smaller than the sum of its proper divisors (12352854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11947146 is a wasteful number, since it uses less digits than its factorization.

11947146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33813.

The product of its digits is 6048, while the sum is 33.

The square root of 11947146 is about 3456.4643785232. The cubic root of 11947146 is about 228.6062275514.

The spelling of 11947146 in words is "eleven million, nine hundred forty-seven thousand, one hundred forty-six".