13831273 has 4 divisors (see below), whose sum is σ = 13842000. Its totient is φ = 13820548.

The previous prime is 13831253. The next prime is 13831277. The reversal of 13831273 is 37213831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37213831 = 853 ⋅43627.

It is a cyclic number.

It is not a de Polignac number, because 13831273 - 2¹⁷ = 13700201 is a prime.

It is a super-2 number, since 2×13831273² = 382608225601058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13831277) 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, 3115 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (3460500).

Almost surely, 2^13831273 is an apocalyptic number.

It is an amenable number.

13831273 is a deficient number, since it is larger than the sum of its proper divisors (10727).

13831273 is an equidigital number, since it uses as much as digits as its factorization.

13831273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726.

The product of its digits is 3024, while the sum is 28.

The square root of 13831273 is about 3719.0419465233. The cubic root of 13831273 is about 240.0420817413.

The spelling of 13831273 in words is "thirteen million, eight hundred thirty-one thousand, two hundred seventy-three".