13431151 has 4 divisors (see below), whose sum is σ = 13464400. Its totient is φ = 13397904.

The previous prime is 13431137. The next prime is 13431161. The reversal of 13431151 is 15113431.

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 13431151 - 2⁹ = 13430639 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 (13431161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16011 + ... + 16828.

It is an arithmetic number, because the mean of its divisors is an integer number (3366100).

Almost surely, 2^13431151 is an apocalyptic number.

13431151 is a deficient number, since it is larger than the sum of its proper divisors (33249).

13431151 is an equidigital number, since it uses as much as digits as its factorization.

13431151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33248.

The product of its digits is 180, while the sum is 19.

The square root of 13431151 is about 3664.8534759251. The cubic root of 13431151 is about 237.7046863316.

Adding to 13431151 its reverse (15113431), we get a palindrome (28544582).

The spelling of 13431151 in words is "thirteen million, four hundred thirty-one thousand, one hundred fifty-one".