13445699 has 4 divisors (see below), whose sum is σ = 13459680. Its totient is φ = 13431720.

The previous prime is 13445683. The next prime is 13445717. The reversal of 13445699 is 99654431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99654431 = 37 ⋅2693363.

It is a cyclic number.

It is not a de Polignac number, because 13445699 - 2⁴ = 13445683 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13445629) 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, 5432 + ... + 7509.

It is an arithmetic number, because the mean of its divisors is an integer number (3364920).

Almost surely, 2^13445699 is an apocalyptic number.

13445699 is a deficient number, since it is larger than the sum of its proper divisors (13981).

13445699 is a wasteful number, since it uses less digits than its factorization.

13445699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13980.

The product of its digits is 116640, while the sum is 41.

The square root of 13445699 is about 3666.8377384335. The cubic root of 13445699 is about 237.7904789284.

The spelling of 13445699 in words is "thirteen million, four hundred forty-five thousand, six hundred ninety-nine".