13678045 has 4 divisors (see below), whose sum is σ = 16413660. Its totient is φ = 10942432.

The previous prime is 13678003. The next prime is 13678057. The reversal of 13678045 is 54087631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9721924 + 3956121 = 3118^2 + 1989^2 .

It is a cyclic number.

It is not a de Polignac number, because 13678045 - 2¹¹ = 13675997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13678045.

It is a congruent number.

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, 1367800 + ... + 1367809.

It is an arithmetic number, because the mean of its divisors is an integer number (4103415).

Almost surely, 2^13678045 is an apocalyptic number.

It is an amenable number.

13678045 is a deficient number, since it is larger than the sum of its proper divisors (2735615).

13678045 is an equidigital number, since it uses as much as digits as its factorization.

13678045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735614.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 13678045 is about 3698.3841066066. The cubic root of 13678045 is about 239.1523628305.

The spelling of 13678045 in words is "thirteen million, six hundred seventy-eight thousand, forty-five".