13151789 has 4 divisors (see below), whose sum is σ = 15030624. Its totient is φ = 11272956.

The previous prime is 13151773. The next prime is 13151813. The reversal of 13151789 is 98715131.

13151789 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98715131 = 853 ⋅115727.

It is a cyclic number.

It is not a de Polignac number, because 13151789 - 2⁴ = 13151773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151729) 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, 939407 + ... + 939420.

It is an arithmetic number, because the mean of its divisors is an integer number (3757656).

Almost surely, 2^13151789 is an apocalyptic number.

It is an amenable number.

13151789 is a deficient number, since it is larger than the sum of its proper divisors (1878835).

13151789 is an equidigital number, since it uses as much as digits as its factorization.

13151789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878834.

The product of its digits is 7560, while the sum is 35.

The square root of 13151789 is about 3626.5395351492. The cubic root of 13151789 is about 236.0450754177.

The spelling of 13151789 in words is "thirteen million, one hundred fifty-one thousand, seven hundred eighty-nine".