12146401 has 2 divisors, whose sum is σ = 12146402. Its totient is φ = 12146400.

The previous prime is 12146399. The next prime is 12146413. The reversal of 12146401 is 10464121.

12146401 is nontrivially palindromic in base 15.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9759376 + 2387025 = 3124^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 12146401 - 2¹ = 12146399 is a prime.

Together with 12146399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12146441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073200 + 6073201.

It is an arithmetic number, because the mean of its divisors is an integer number (6073201).

Almost surely, 2^12146401 is an apocalyptic number.

It is an amenable number.

12146401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12146401 is an equidigital number, since it uses as much as digits as its factorization.

12146401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12146401 is about 3485.1687190149. The cubic root of 12146401 is about 229.8701283188.

The spelling of 12146401 in words is "twelve million, one hundred forty-six thousand, four hundred one".