12748161 has 8 divisors (see below), whose sum is σ = 17545984. Its totient is φ = 8224560.

The previous prime is 12748123. The next prime is 12748163. The reversal of 12748161 is 16184721.

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

It is not a de Polignac number, because 12748161 - 2⁶ = 12748097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12748163) 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, 68446 + ... + 68631.

It is an arithmetic number, because the mean of its divisors is an integer number (2193248).

Almost surely, 2^12748161 is an apocalyptic number.

It is an amenable number.

12748161 is a deficient number, since it is larger than the sum of its proper divisors (4797823).

12748161 is a wasteful number, since it uses less digits than its factorization.

12748161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137111.

The product of its digits is 2688, while the sum is 30.

The square root of 12748161 is about 3570.4566934777. The cubic root of 12748161 is about 233.6052039659.

The spelling of 12748161 in words is "twelve million, seven hundred forty-eight thousand, one hundred sixty-one".