12401437 has 2 divisors, whose sum is σ = 12401438. Its totient is φ = 12401436.

The previous prime is 12401429. The next prime is 12401447. The reversal of 12401437 is 73410421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10310521 + 2090916 = 3211^2 + 1446^2 .

It is a cyclic number.

It is not a de Polignac number, because 12401437 - 2³ = 12401429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12401447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200718 + 6200719.

It is an arithmetic number, because the mean of its divisors is an integer number (6200719).

Almost surely, 2^12401437 is an apocalyptic number.

It is an amenable number.

12401437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12401437 is an equidigital number, since it uses as much as digits as its factorization.

12401437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12401437 is about 3521.5674067097. The cubic root of 12401437 is about 231.4678461408.

Adding to 12401437 its reverse (73410421), we get a palindrome (85811858).

The spelling of 12401437 in words is "twelve million, four hundred one thousand, four hundred thirty-seven".