12661701 has 16 divisors (see below), whose sum is σ = 18373824. Its totient is φ = 7709184.

The previous prime is 12661699. The next prime is 12661721. The reversal of 12661701 is 10716621.

It is not a de Polignac number, because 12661701 - 2¹ = 12661699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12661721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2110 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (1148364).

Almost surely, 2^12661701 is an apocalyptic number.

It is an amenable number.

12661701 is a deficient number, since it is larger than the sum of its proper divisors (5712123).

12661701 is a wasteful number, since it uses less digits than its factorization.

12661701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12661701 is about 3558.3283996843. The cubic root of 12661701 is about 233.0758899827.

The spelling of 12661701 in words is "twelve million, six hundred sixty-one thousand, seven hundred one".