13145998 has 8 divisors (see below), whose sum is σ = 20878992. Its totient is φ = 6186336.

The previous prime is 13145987. The next prime is 13145999. The reversal of 13145998 is 89954131.

13145998 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 self number, because there is not a number n which added to its sum of digits gives 13145998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193290 + ... + 193357.

It is an arithmetic number, because the mean of its divisors is an integer number (2609874).

Almost surely, 2^13145998 is an apocalyptic number.

13145998 is a deficient number, since it is larger than the sum of its proper divisors (7732994).

13145998 is a wasteful number, since it uses less digits than its factorization.

13145998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386666.

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

The square root of 13145998 is about 3625.7410277073. The cubic root of 13145998 is about 236.0104251834.

The spelling of 13145998 in words is "thirteen million, one hundred forty-five thousand, nine hundred ninety-eight".