13561238 has 4 divisors (see below), whose sum is σ = 20341860. Its totient is φ = 6780618.

The previous prime is 13561199. The next prime is 13561259. The reversal of 13561238 is 83216531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83216531 = 1759 ⋅47309.

It is a self number, because there is not a number n which added to its sum of digits gives 13561238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3390308 + ... + 3390311.

It is an arithmetic number, because the mean of its divisors is an integer number (5085465).

Almost surely, 2^13561238 is an apocalyptic number.

13561238 is a deficient number, since it is larger than the sum of its proper divisors (6780622).

13561238 is an equidigital number, since it uses as much as digits as its factorization.

13561238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780621.

The product of its digits is 4320, while the sum is 29.

The square root of 13561238 is about 3682.5586213936. The cubic root of 13561238 is about 238.4696490904.

Adding to 13561238 its reverse (83216531), we get a palindrome (96777769).

The spelling of 13561238 in words is "thirteen million, five hundred sixty-one thousand, two hundred thirty-eight".