12402151 has 2 divisors, whose sum is σ = 12402152. Its totient is φ = 12402150.

The previous prime is 12402149. The next prime is 12402157. The reversal of 12402151 is 15120421.

It is a weak prime.

It is an emirp because it is prime and its reverse (15120421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12402151 - 2¹ = 12402149 is a prime.

Together with 12402149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12402157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201075 + 6201076.

It is an arithmetic number, because the mean of its divisors is an integer number (6201076).

Almost surely, 2^12402151 is an apocalyptic number.

12402151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402151 is an equidigital number, since it uses as much as digits as its factorization.

12402151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12402151 is about 3521.6687805641. The cubic root of 12402151 is about 231.4722882300.

Adding to 12402151 its reverse (15120421), we get a palindrome (27522572).

The spelling of 12402151 in words is "twelve million, four hundred two thousand, one hundred fifty-one".