12408137 has 4 divisors (see below), whose sum is σ = 14180736. Its totient is φ = 10635540.

The previous prime is 12408131. The next prime is 12408139. The reversal of 12408137 is 73180421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12408137 - 2⁶ = 12408073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12408131) 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 in 3 ways as a sum of consecutive naturals, for example, 886289 + ... + 886302.

It is an arithmetic number, because the mean of its divisors is an integer number (3545184).

Almost surely, 2^12408137 is an apocalyptic number.

It is an amenable number.

12408137 is a deficient number, since it is larger than the sum of its proper divisors (1772599).

12408137 is an equidigital number, since it uses as much as digits as its factorization.

12408137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772598.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12408137 is about 3522.5185592130. The cubic root of 12408137 is about 231.5095229069.

Adding to 12408137 its reverse (73180421), we get a palindrome (85588558).

The spelling of 12408137 in words is "twelve million, four hundred eight thousand, one hundred thirty-seven".