13454138 has 4 divisors (see below), whose sum is σ = 20181210. Its totient is φ = 6727068.

The previous prime is 13454137. The next prime is 13454153. The reversal of 13454138 is 83145431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83145431 = 797 ⋅104323.

It can be written as a sum of positive squares in only one way, i.e., 11042329 + 2411809 = 3323^2 + 1553^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13454138.

It is not an unprimeable number, because it can be changed into a prime (13454131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3363533 + ... + 3363536.

Almost surely, 2^13454138 is an apocalyptic number.

13454138 is a deficient number, since it is larger than the sum of its proper divisors (6727072).

13454138 is an equidigital number, since it uses as much as digits as its factorization.

13454138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6727071.

The product of its digits is 5760, while the sum is 29.

The square root of 13454138 is about 3667.9882769715. The cubic root of 13454138 is about 237.8402171177.

Adding to 13454138 its reverse (83145431), we get a palindrome (96599569).

The spelling of 13454138 in words is "thirteen million, four hundred fifty-four thousand, one hundred thirty-eight".