12747101 has 4 divisors (see below), whose sum is σ = 12775452. Its totient is φ = 12718752.

The previous prime is 12747047. The next prime is 12747121. The reversal of 12747101 is 10174721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 504100 = 3499^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 12747101 - 2¹⁰ = 12746077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13490 + ... + 14403.

It is an arithmetic number, because the mean of its divisors is an integer number (3193863).

Almost surely, 2^12747101 is an apocalyptic number.

It is an amenable number.

12747101 is a deficient number, since it is larger than the sum of its proper divisors (28351).

12747101 is an equidigital number, since it uses as much as digits as its factorization.

12747101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28350.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 12747101 is about 3570.3082499975. The cubic root of 12747101 is about 233.5987290874.

The spelling of 12747101 in words is "twelve million, seven hundred forty-seven thousand, one hundred one".