12418501 has 2 divisors, whose sum is σ = 12418502. Its totient is φ = 12418500.

The previous prime is 12418499. The next prime is 12418513. The reversal of 12418501 is 10581421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 1758276 = 3265^2 + 1326^2 .

It is a cyclic number.

It is not a de Polignac number, because 12418501 - 2¹ = 12418499 is a prime.

Together with 12418499, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12418561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209250 + 6209251.

It is an arithmetic number, because the mean of its divisors is an integer number (6209251).

Almost surely, 2^12418501 is an apocalyptic number.

It is an amenable number.

12418501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12418501 is an equidigital number, since it uses as much as digits as its factorization.

12418501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 12418501 is about 3523.9893586672. The cubic root of 12418501 is about 231.5739617230.

Adding to 12418501 its reverse (10581421), we get a palindrome (22999922).

The spelling of 12418501 in words is "twelve million, four hundred eighteen thousand, five hundred one".