13131277 has 4 divisors (see below), whose sum is σ = 13162176. Its totient is φ = 13100380.

The previous prime is 13131271. The next prime is 13131281. The reversal of 13131277 is 77213131.

13131277 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13131277 - 2¹¹ = 13129229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131271) 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, 14803 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (3290544).

Almost surely, 2^13131277 is an apocalyptic number.

It is an amenable number.

13131277 is a deficient number, since it is larger than the sum of its proper divisors (30899).

13131277 is an equidigital number, since it uses as much as digits as its factorization.

13131277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30898.

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

The square root of 13131277 is about 3623.7103912978. The cubic root of 13131277 is about 235.9222967880.

The spelling of 13131277 in words is "thirteen million, one hundred thirty-one thousand, two hundred seventy-seven".