12538453 has 2 divisors, whose sum is σ = 12538454. Its totient is φ = 12538452.

The previous prime is 12538439. The next prime is 12538481. The reversal of 12538453 is 35483521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8625969 + 3912484 = 2937^2 + 1978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12538453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12538433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6269226 + 6269227.

It is an arithmetic number, because the mean of its divisors is an integer number (6269227).

Almost surely, 2^12538453 is an apocalyptic number.

It is an amenable number.

12538453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12538453 is an equidigital number, since it uses as much as digits as its factorization.

12538453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 12538453 is about 3540.9678055582. The cubic root of 12538453 is about 232.3171754256.

The spelling of 12538453 in words is "twelve million, five hundred thirty-eight thousand, four hundred fifty-three".