13520603 has 2 divisors, whose sum is σ = 13520604. Its totient is φ = 13520602.

The previous prime is 13520599. The next prime is 13520653. The reversal of 13520603 is 30602531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13520603 - 2² = 13520599 is a prime.

It is not a weakly prime, because it can be changed into another prime (13520653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760301 + 6760302.

It is an arithmetic number, because the mean of its divisors is an integer number (6760302).

Almost surely, 2^13520603 is an apocalyptic number.

13520603 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520603 is an equidigital number, since it uses as much as digits as its factorization.

13520603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13520603 is about 3677.0372584460. The cubic root of 13520603 is about 238.2312266852.

The spelling of 13520603 in words is "thirteen million, five hundred twenty thousand, six hundred three".