13445999 has 8 divisors (see below), whose sum is σ = 15389088. Its totient is φ = 11508480.

The previous prime is 13445969. The next prime is 13446001. The reversal of 13445999 is 99954431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13445999 - 2¹⁶ = 13380463 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8339 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (1923636).

Almost surely, 2^13445999 is an apocalyptic number.

13445999 is a deficient number, since it is larger than the sum of its proper divisors (1943089).

13445999 is a wasteful number, since it uses less digits than its factorization.

13445999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785.

The product of its digits is 174960, while the sum is 44.

The square root of 13445999 is about 3666.8786453877. The cubic root of 13445999 is about 237.7922474397.

The spelling of 13445999 in words is "thirteen million, four hundred forty-five thousand, nine hundred ninety-nine".