13559145 has 16 divisors (see below), whose sum is σ = 21920640. Its totient is φ = 7156224.

The previous prime is 13559123. The next prime is 13559159. The reversal of 13559145 is 54195531.

It is not a de Polignac number, because 13559145 - 2¹⁰ = 13558121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (1370040).

Almost surely, 2^13559145 is an apocalyptic number.

13559145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13559145 is a deficient number, since it is larger than the sum of its proper divisors (8361495).

13559145 is an equidigital number, since it uses as much as digits as its factorization.

13559145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9424.

The product of its digits is 13500, while the sum is 33.

The square root of 13559145 is about 3682.2744330101. The cubic root of 13559145 is about 238.4573802338.

The spelling of 13559145 in words is "thirteen million, five hundred fifty-nine thousand, one hundred forty-five".