12240137 has 8 divisors (see below), whose sum is σ = 15064896. Its totient is φ = 9684432.

The previous prime is 12240131. The next prime is 12240157. The reversal of 12240137 is 73104221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12240137 - 2⁴ = 12240121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67163 + ... + 67344.

It is an arithmetic number, because the mean of its divisors is an integer number (1883112).

Almost surely, 2^12240137 is an apocalyptic number.

It is an amenable number.

12240137 is a deficient number, since it is larger than the sum of its proper divisors (2824759).

12240137 is a wasteful number, since it uses less digits than its factorization.

12240137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134527.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12240137 is about 3498.5907162742. The cubic root of 12240137 is about 230.4599303272.

Adding to 12240137 its reverse (73104221), we get a palindrome (85344358).

The spelling of 12240137 in words is "twelve million, two hundred forty thousand, one hundred thirty-seven".