13169945 has 16 divisors (see below), whose sum is σ = 16760640. Its totient is φ = 9906624.

The previous prime is 13169939. The next prime is 13169957. The reversal of 13169945 is 54996131.

13169945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13169945 - 2¹⁰ = 13168921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13169899 and 13169908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14474 + ... + 15356.

It is an arithmetic number, because the mean of its divisors is an integer number (1047540).

Almost surely, 2^13169945 is an apocalyptic number.

It is an amenable number.

13169945 is a deficient number, since it is larger than the sum of its proper divisors (3590695).

13169945 is a wasteful number, since it uses less digits than its factorization.

13169945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 29160, while the sum is 38.

The square root of 13169945 is about 3629.0418845750. The cubic root of 13169945 is about 236.1536452810.

The spelling of 13169945 in words is "thirteen million, one hundred sixty-nine thousand, nine hundred forty-five".