13502545 has 32 divisors (see below), whose sum is σ = 19595520. Its totient is φ = 8736000.

The previous prime is 13502543. The next prime is 13502549. The reversal of 13502545 is 54520531.

It is not a de Polignac number, because 13502545 - 2¹ = 13502543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13502543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53670 + ... + 53920.

It is an arithmetic number, because the mean of its divisors is an integer number (612360).

Almost surely, 2^13502545 is an apocalyptic number.

It is an amenable number.

13502545 is a deficient number, since it is larger than the sum of its proper divisors (6092975).

13502545 is a wasteful number, since it uses less digits than its factorization.

13502545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 13502545 is about 3674.5809284869. The cubic root of 13502545 is about 238.1251195798.

The spelling of 13502545 in words is "thirteen million, five hundred two thousand, five hundred forty-five".