13503407 has 2 divisors, whose sum is σ = 13503408. Its totient is φ = 13503406.

The previous prime is 13503401. The next prime is 13503421. The reversal of 13503407 is 70430531.

It is a happy number.

13503407 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13503407 - 2¹⁰ = 13502383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13503401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6751703 + 6751704.

It is an arithmetic number, because the mean of its divisors is an integer number (6751704).

Almost surely, 2^13503407 is an apocalyptic number.

13503407 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503407 is an equidigital number, since it uses as much as digits as its factorization.

13503407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13503407 is about 3674.6982189018. The cubic root of 13503407 is about 238.1301867600.

Adding to 13503407 its reverse (70430531), we get a palindrome (83933938).

The spelling of 13503407 in words is "thirteen million, five hundred three thousand, four hundred seven".