12132401 has 2 divisors, whose sum is σ = 12132402. Its totient is φ = 12132400.

The previous prime is 12132371. The next prime is 12132443. The reversal of 12132401 is 10423121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 160801 = 3460^2 + 401^2 .

It is an emirp because it is prime and its reverse (10423121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12132401 - 2¹⁰ = 12131377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12132451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066200 + 6066201.

It is an arithmetic number, because the mean of its divisors is an integer number (6066201).

Almost surely, 2^12132401 is an apocalyptic number.

It is an amenable number.

12132401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132401 is an equidigital number, since it uses as much as digits as its factorization.

12132401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12132401 is about 3483.1596288428. The cubic root of 12132401 is about 229.7817778953.

Adding to 12132401 its reverse (10423121), we get a palindrome (22555522).

The spelling of 12132401 in words is "twelve million, one hundred thirty-two thousand, four hundred one".