13387161 has 4 divisors (see below), whose sum is σ = 17849552. Its totient is φ = 8924772.

The previous prime is 13387141. The next prime is 13387169. The reversal of 13387161 is 16178331.

13387161 is digitally balanced in base 3, 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 not a de Polignac number, because 13387161 - 2⁶ = 13387097 is a prime.

It is a super-3 number, since 3×13387161³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13387169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231191 + ... + 2231196.

It is an arithmetic number, because the mean of its divisors is an integer number (4462388).

Almost surely, 2^13387161 is an apocalyptic number.

It is an amenable number.

13387161 is a deficient number, since it is larger than the sum of its proper divisors (4462391).

13387161 is an equidigital number, since it uses as much as digits as its factorization.

13387161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462390.

The product of its digits is 3024, while the sum is 30.

The square root of 13387161 is about 3658.8469495184. The cubic root of 13387161 is about 237.4448906299. Note that the first 3 decimals are identical.

The spelling of 13387161 in words is "thirteen million, three hundred eighty-seven thousand, one hundred sixty-one".