13771123 has 4 divisors (see below), whose sum is σ = 13792680. Its totient is φ = 13749568.

The previous prime is 13771091. The next prime is 13771127. The reversal of 13771123 is 32117731.

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

It is a cyclic number.

It is not a de Polignac number, because 13771123 - 2⁵ = 13771091 is a prime.

It is a super-2 number, since 2×13771123² = 379287657362258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13771127) 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 in 3 ways as a sum of consecutive naturals, for example, 9790 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (3448170).

Almost surely, 2^13771123 is an apocalyptic number.

13771123 is a deficient number, since it is larger than the sum of its proper divisors (21557).

13771123 is an equidigital number, since it uses as much as digits as its factorization.

13771123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21556.

The product of its digits is 882, while the sum is 25.

The square root of 13771123 is about 3710.9463752525. The cubic root of 13771123 is about 239.6936078584.

Adding to 13771123 its reverse (32117731), we get a palindrome (45888854).

It can be divided in two parts, 1377 and 1123, that added together give a square (2500 = 50²).

The spelling of 13771123 in words is "thirteen million, seven hundred seventy-one thousand, one hundred twenty-three".