12520453 has 8 divisors (see below), whose sum is σ = 13684320. Its totient is φ = 11360880.

The previous prime is 12520451. The next prime is 12520463. The reversal of 12520453 is 35402521.

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 12520453 - 2¹ = 12520451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520451) 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, 10651 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (1710540).

Almost surely, 2^12520453 is an apocalyptic number.

It is an amenable number.

12520453 is a deficient number, since it is larger than the sum of its proper divisors (1163867).

12520453 is a wasteful number, since it uses less digits than its factorization.

12520453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 12520453 is about 3538.4252146965. The cubic root of 12520453 is about 232.2059519272.

Adding to 12520453 its reverse (35402521), we get a palindrome (47922974).

The spelling of 12520453 in words is "twelve million, five hundred twenty thousand, four hundred fifty-three".