13853945 has 32 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 8856000.

The previous prime is 13853927. The next prime is 13853951. The reversal of 13853945 is 54935831.

It is a happy number.

It is not a de Polignac number, because 13853945 - 2⁶ = 13853881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13853899 and 13853908.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55070 + ... + 55320.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^13853945 is an apocalyptic number.

It is an amenable number.

13853945 is a deficient number, since it is larger than the sum of its proper divisors (6467335).

13853945 is a wasteful number, since it uses less digits than its factorization.

13853945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 64800, while the sum is 38.

The square root of 13853945 is about 3722.0887952869. The cubic root of 13853945 is about 240.1731678478.

The spelling of 13853945 in words is "thirteen million, eight hundred fifty-three thousand, nine hundred forty-five".