12453137 has 4 divisors (see below), whose sum is σ = 12466356. Its totient is φ = 12439920.

The previous prime is 12453131. The next prime is 12453157. The reversal of 12453137 is 73135421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73135421 = 37 ⋅1976633.

It can be written as a sum of positive squares in 2 ways, for example, as 8059921 + 4393216 = 2839^2 + 2096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12453137 is a prime.

It is a super-3 number, since 3×12453137³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12453131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5078 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (3116589).

Almost surely, 2^12453137 is an apocalyptic number.

It is an amenable number.

12453137 is a deficient number, since it is larger than the sum of its proper divisors (13219).

12453137 is a wasteful number, since it uses less digits than its factorization.

12453137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13218.

The product of its digits is 2520, while the sum is 26.

The square root of 12453137 is about 3528.9002536201. The cubic root of 12453137 is about 231.7890534487.

Adding to 12453137 its reverse (73135421), we get a palindrome (85588558).

The spelling of 12453137 in words is "twelve million, four hundred fifty-three thousand, one hundred thirty-seven".