13438151 has 4 divisors (see below), whose sum is σ = 13571304. Its totient is φ = 13305000.

The previous prime is 13438147. The next prime is 13438157. The reversal of 13438151 is 15183431.

13438151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13438151 - 2² = 13438147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13438151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438157) 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, 66425 + ... + 66626.

It is an arithmetic number, because the mean of its divisors is an integer number (3392826).

Almost surely, 2^13438151 is an apocalyptic number.

13438151 is a deficient number, since it is larger than the sum of its proper divisors (133153).

13438151 is a wasteful number, since it uses less digits than its factorization.

13438151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133152.

The product of its digits is 1440, while the sum is 26.

The square root of 13438151 is about 3665.8083692414. The cubic root of 13438151 is about 237.7459745235.

The spelling of 13438151 in words is "thirteen million, four hundred thirty-eight thousand, one hundred fifty-one".