13145899 has 8 divisors (see below), whose sum is σ = 14186592. Its totient is φ = 12109440.

The previous prime is 13145893. The next prime is 13145911. The reversal of 13145899 is 99854131.

13145899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13145899 - 2⁹ = 13145387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13145893) 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, 8979 + ... + 10339.

It is an arithmetic number, because the mean of its divisors is an integer number (1773324).

Almost surely, 2^13145899 is an apocalyptic number.

13145899 is a deficient number, since it is larger than the sum of its proper divisors (1040693).

13145899 is a wasteful number, since it uses less digits than its factorization.

13145899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117.

The product of its digits is 38880, while the sum is 40.

The square root of 13145899 is about 3625.7273753000. The cubic root of 13145899 is about 236.0098327321.

The spelling of 13145899 in words is "thirteen million, one hundred forty-five thousand, eight hundred ninety-nine".