12747481 has 8 divisors (see below), whose sum is σ = 13242240. Its totient is φ = 12262128.

The previous prime is 12747463. The next prime is 12747503. The reversal of 12747481 is 18474721.

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

It is a cyclic number.

It is not a de Polignac number, because 12747481 - 2¹³ = 12739289 is a prime.

It is a super-2 number, since 2×12747481² = 324996543690722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12747421) 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, 475 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (1655280).

Almost surely, 2^12747481 is an apocalyptic number.

It is an amenable number.

12747481 is a deficient number, since it is larger than the sum of its proper divisors (494759).

12747481 is an equidigital number, since it uses as much as digits as its factorization.

12747481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703.

The product of its digits is 12544, while the sum is 34.

The square root of 12747481 is about 3570.3614662944. The cubic root of 12747481 is about 233.6010503116.

The spelling of 12747481 in words is "twelve million, seven hundred forty-seven thousand, four hundred eighty-one".