13645514 has 4 divisors (see below), whose sum is σ = 20468274. Its totient is φ = 6822756.

The previous prime is 13645507. The next prime is 13645519. The reversal of 13645514 is 41554631.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 6165289 = 2735^2 + 2483^2 .

It is not an unprimeable number, because it can be changed into a prime (13645519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3411377 + ... + 3411380.

Almost surely, 2^13645514 is an apocalyptic number.

13645514 is a deficient number, since it is larger than the sum of its proper divisors (6822760).

13645514 is an equidigital number, since it uses as much as digits as its factorization.

13645514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822759.

The product of its digits is 7200, while the sum is 29.

The square root of 13645514 is about 3693.9834866983. The cubic root of 13645514 is about 238.9626173566.

The spelling of 13645514 in words is "thirteen million, six hundred forty-five thousand, five hundred fourteen".