12161701 has 6 divisors (see below), whose sum is σ = 12596402. Its totient is φ = 11741520.

The previous prime is 12161689. The next prime is 12161711. The reversal of 12161701 is 10716121.

12161701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 224676 + 11937025 = 474^2 + 3455^2 .

It is not a de Polignac number, because 12161701 - 2⁷ = 12161573 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 (12161711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6390 + ... + 8071.

Almost surely, 2^12161701 is an apocalyptic number.

It is an amenable number.

12161701 is a deficient number, since it is larger than the sum of its proper divisors (434701).

12161701 is an equidigital number, since it uses as much as digits as its factorization.

12161701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519 (or 14490 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 12161701 is about 3487.3630439058. The cubic root of 12161701 is about 229.9666051073.

Adding to 12161701 its reverse (10716121), we get a palindrome (22877822).

The spelling of 12161701 in words is "twelve million, one hundred sixty-one thousand, seven hundred one".