12747081 has 8 divisors (see below), whose sum is σ = 17890720. Its totient is φ = 8050752.

The previous prime is 12747047. The next prime is 12747121. The reversal of 12747081 is 18074721.

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

It is not a de Polignac number, because 12747081 - 2⁷ = 12746953 is a prime.

It is a super-2 number, since 2×12747081² = 324976148041122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12747001) 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, 111760 + ... + 111873.

It is an arithmetic number, because the mean of its divisors is an integer number (2236340).

Almost surely, 2^12747081 is an apocalyptic number.

It is an amenable number.

12747081 is a deficient number, since it is larger than the sum of its proper divisors (5143639).

12747081 is a wasteful number, since it uses less digits than its factorization.

12747081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223655.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 12747081 is about 3570.3054491178. The cubic root of 12747081 is about 233.5986069165.

The spelling of 12747081 in words is "twelve million, seven hundred forty-seven thousand, eighty-one".