12902401 has 2 divisors, whose sum is σ = 12902402. Its totient is φ = 12902400.

The previous prime is 12902399. The next prime is 12902423. The reversal of 12902401 is 10420921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12852225 + 50176 = 3585^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 12902401 - 2¹ = 12902399 is a prime.

Together with 12902399, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12902431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451200 + 6451201.

It is an arithmetic number, because the mean of its divisors is an integer number (6451201).

It is a Proth number, since it is equal to 1575 ⋅ 2¹³ + 1 and 1575 < 2¹³.

Almost surely, 2^12902401 is an apocalyptic number.

It is an amenable number.

12902401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12902401 is an equidigital number, since it uses as much as digits as its factorization.

12902401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12902401 is about 3591.9912305015. The cubic root of 12902401 is about 234.5435594799.

The spelling of 12902401 in words is "twelve million, nine hundred two thousand, four hundred one".