12661473 has 8 divisors (see below), whose sum is σ = 18416736. Its totient is φ = 7673600.

The previous prime is 12661469. The next prime is 12661483. The reversal of 12661473 is 37416621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12661473 - 2² = 12661469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12661473.

It is not an unprimeable number, because it can be changed into a prime (12661433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191808 + ... + 191873.

It is an arithmetic number, because the mean of its divisors is an integer number (2302092).

Almost surely, 2^12661473 is an apocalyptic number.

It is an amenable number.

12661473 is a deficient number, since it is larger than the sum of its proper divisors (5755263).

12661473 is a wasteful number, since it uses less digits than its factorization.

12661473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383695.

The product of its digits is 6048, while the sum is 30.

The square root of 12661473 is about 3558.2963620250. The cubic root of 12661473 is about 233.0744909706.

The spelling of 12661473 in words is "twelve million, six hundred sixty-one thousand, four hundred seventy-three".