13771138 has 8 divisors (see below), whose sum is σ = 20675088. Its totient is φ = 6879444.

The previous prime is 13771127. The next prime is 13771151. The reversal of 13771138 is 83117731.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 645 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (2584386).

Almost surely, 2^13771138 is an apocalyptic number.

13771138 is a deficient number, since it is larger than the sum of its proper divisors (6903950).

13771138 is a wasteful number, since it uses less digits than its factorization.

13771138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128.

The product of its digits is 3528, while the sum is 31.

The square root of 13771138 is about 3710.9483962998. The cubic root of 13771138 is about 239.6936948860.

Adding to 13771138 its reverse (83117731), we get a palindrome (96888869).

The spelling of 13771138 in words is "thirteen million, seven hundred seventy-one thousand, one hundred thirty-eight".