13751889 has 4 divisors (see below), whose sum is σ = 18335856. Its totient is φ = 9167924.

The previous prime is 13751869. The next prime is 13751891. The reversal of 13751889 is 98815731.

13751889 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.

It is a cyclic number.

It is not a de Polignac number, because 13751889 - 2¹⁹ = 13227601 is a prime.

It is a super-2 number, since 2×13751889² = 378228902136642, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13751889.

It is not an unprimeable number, because it can be changed into a prime (13751869) 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, 2291979 + ... + 2291984.

It is an arithmetic number, because the mean of its divisors is an integer number (4583964).

Almost surely, 2^13751889 is an apocalyptic number.

It is an amenable number.

13751889 is a deficient number, since it is larger than the sum of its proper divisors (4583967).

13751889 is an equidigital number, since it uses as much as digits as its factorization.

13751889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583966.

The product of its digits is 60480, while the sum is 42.

The square root of 13751889 is about 3708.3539475082. The cubic root of 13751889 is about 239.5819632503.

The spelling of 13751889 in words is "thirteen million, seven hundred fifty-one thousand, eight hundred eighty-nine".