12026137 has 4 divisors (see below), whose sum is σ = 12033280. Its totient is φ = 12018996.

The previous prime is 12026129. The next prime is 12026149. The reversal of 12026137 is 73162021.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 73162021 = 71 ⋅1030451.

It is a cyclic number.

It is not a de Polignac number, because 12026137 - 2³ = 12026129 is a prime.

It is a super-2 number, since 2×12026137² = 289255942285538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12026117) 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 3 ways as a sum of consecutive naturals, for example, 508 + ... + 4930.

It is an arithmetic number, because the mean of its divisors is an integer number (3008320).

Almost surely, 2^12026137 is an apocalyptic number.

It is an amenable number.

12026137 is a deficient number, since it is larger than the sum of its proper divisors (7143).

12026137 is an equidigital number, since it uses as much as digits as its factorization.

12026137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12026137 is about 3467.8721141357. The cubic root of 12026137 is about 229.1089468445.

Adding to 12026137 its reverse (73162021), we get a palindrome (85188158).

The spelling of 12026137 in words is "twelve million, twenty-six thousand, one hundred thirty-seven".