13400165 has 8 divisors (see below), whose sum is σ = 17026200. Its totient is φ = 10089472.

The previous prime is 13400161. The next prime is 13400171. The reversal of 13400165 is 56100431.

13400165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1442401 + 11957764 = 1201^2 + 3458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13400165 - 2² = 13400161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78740 + ... + 78909.

It is an arithmetic number, because the mean of its divisors is an integer number (2128275).

Almost surely, 2^13400165 is an apocalyptic number.

It is an amenable number.

13400165 is a deficient number, since it is larger than the sum of its proper divisors (3626035).

13400165 is a wasteful number, since it uses less digits than its factorization.

13400165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157671.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13400165 is about 3660.6235807578. The cubic root of 13400165 is about 237.5217487009.

Adding to 13400165 its reverse (56100431), we get a palindrome (69500596).

The spelling of 13400165 in words is "thirteen million, four hundred thousand, one hundred sixty-five".