13540451 has 4 divisors (see below), whose sum is σ = 13660392. Its totient is φ = 13420512.

The previous prime is 13540433. The next prime is 13540463. The reversal of 13540451 is 15404531.

13540451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13540451 - 2²² = 9346147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13540411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59801 + ... + 60026.

It is an arithmetic number, because the mean of its divisors is an integer number (3415098).

Almost surely, 2^13540451 is an apocalyptic number.

13540451 is a deficient number, since it is larger than the sum of its proper divisors (119941).

13540451 is a wasteful number, since it uses less digits than its factorization.

13540451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119940.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13540451 is about 3679.7351806890. The cubic root of 13540451 is about 238.3477427294.

Adding to 13540451 its reverse (15404531), we get a palindrome (28944982).

The spelling of 13540451 in words is "thirteen million, five hundred forty thousand, four hundred fifty-one".