13799545 has 4 divisors (see below), whose sum is σ = 16559460. Its totient is φ = 11039632.

The previous prime is 13799537. The next prime is 13799549. The reversal of 13799545 is 54599731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54599731 = 4561 ⋅11971.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 7469289 = 2516^2 + 2733^2 .

It is a cyclic number.

It is not a de Polignac number, because 13799545 - 2³ = 13799537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13799549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379950 + ... + 1379959.

It is an arithmetic number, because the mean of its divisors is an integer number (4139865).

Almost surely, 2^13799545 is an apocalyptic number.

It is an amenable number.

13799545 is a deficient number, since it is larger than the sum of its proper divisors (2759915).

13799545 is an equidigital number, since it uses as much as digits as its factorization.

13799545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759914.

The product of its digits is 170100, while the sum is 43.

The square root of 13799545 is about 3714.7738827552. The cubic root of 13799545 is about 239.8583944752.

The spelling of 13799545 in words is "thirteen million, seven hundred ninety-nine thousand, five hundred forty-five".