13545473 has 4 divisors (see below), whose sum is σ = 13860528. Its totient is φ = 13230420.

The previous prime is 13545449. The next prime is 13545503. The reversal of 13545473 is 37454531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13545473 - 2¹² = 13541377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13545173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157463 + ... + 157548.

It is an arithmetic number, because the mean of its divisors is an integer number (3465132).

It is a Proth number, since it is equal to 3307 ⋅ 2¹² + 1 and 3307 < 2¹².

Almost surely, 2^13545473 is an apocalyptic number.

It is an amenable number.

13545473 is a deficient number, since it is larger than the sum of its proper divisors (315055).

13545473 is an equidigital number, since it uses as much as digits as its factorization.

13545473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315054.

The product of its digits is 25200, while the sum is 32.

The square root of 13545473 is about 3680.4175034906. The cubic root of 13545473 is about 238.3772059138.

The spelling of 13545473 in words is "thirteen million, five hundred forty-five thousand, four hundred seventy-three".