13654138 has 4 divisors (see below), whose sum is σ = 20481210. Its totient is φ = 6827068.

The previous prime is 13654127. The next prime is 13654159. The reversal of 13654138 is 83145631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83145631 = 977 ⋅85103.

It can be written as a sum of positive squares in only one way, i.e., 11135569 + 2518569 = 3337^2 + 1587^2 .

It is an unprimeable number.

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, 3413533 + ... + 3413536.

Almost surely, 2^13654138 is an apocalyptic number.

13654138 is a deficient number, since it is larger than the sum of its proper divisors (6827072).

13654138 is an equidigital number, since it uses as much as digits as its factorization.

13654138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827071.

The product of its digits is 8640, while the sum is 31.

The square root of 13654138 is about 3695.1506058617. The cubic root of 13654138 is about 239.0129484182.

Adding to 13654138 its reverse (83145631), we get a palindrome (96799769).

The spelling of 13654138 in words is "thirteen million, six hundred fifty-four thousand, one hundred thirty-eight".