12540453 has 8 divisors (see below), whose sum is σ = 16775616. Its totient is φ = 8332800.

The previous prime is 12540449. The next prime is 12540467. The reversal of 12540453 is 35404521.

12540453 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12540453 - 2² = 12540449 is a prime.

It is a super-3 number, since 3×12540453³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788 + ... + 7653.

It is an arithmetic number, because the mean of its divisors is an integer number (2096952).

Almost surely, 2^12540453 is an apocalyptic number.

It is an amenable number.

12540453 is a deficient number, since it is larger than the sum of its proper divisors (4235163).

12540453 is a wasteful number, since it uses less digits than its factorization.

12540453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13755.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 12540453 is about 3541.2502029650. The cubic root of 12540453 is about 232.3295270197.

Adding to 12540453 its reverse (35404521), we get a palindrome (47944974).

The spelling of 12540453 in words is "twelve million, five hundred forty thousand, four hundred fifty-three".