13966345 has 4 divisors (see below), whose sum is σ = 16759620. Its totient is φ = 11173072.

The previous prime is 13966321. The next prime is 13966369. The reversal of 13966345 is 54366931.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13966321) and next prime (13966369).

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 8602489 = 2316^2 + 2933^2 .

It is a cyclic number.

It is not a de Polignac number, because 13966345 - 2¹⁹ = 13442057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396630 + ... + 1396639.

It is an arithmetic number, because the mean of its divisors is an integer number (4189905).

Almost surely, 2^13966345 is an apocalyptic number.

It is an amenable number.

13966345 is a deficient number, since it is larger than the sum of its proper divisors (2793275).

13966345 is an equidigital number, since it uses as much as digits as its factorization.

13966345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793274.

The product of its digits is 58320, while the sum is 37.

The square root of 13966345 is about 3737.1573421519. The cubic root of 13966345 is about 240.8209444610.

The spelling of 13966345 in words is "thirteen million, nine hundred sixty-six thousand, three hundred forty-five".