13142231 has 2 divisors, whose sum is σ = 13142232. Its totient is φ = 13142230.

The previous prime is 13142197. The next prime is 13142279. The reversal of 13142231 is 13224131.

It is a weak prime.

It is an emirp because it is prime and its reverse (13224131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13142231 - 2¹⁰ = 13141207 is a prime.

It is a super-2 number, since 2×13142231² = 345436471314722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13142431) 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 as a sum of consecutive naturals, namely, 6571115 + 6571116.

It is an arithmetic number, because the mean of its divisors is an integer number (6571116).

Almost surely, 2^13142231 is an apocalyptic number.

13142231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142231 is an equidigital number, since it uses as much as digits as its factorization.

13142231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 13142231 is about 3625.2215104735. The cubic root of 13142231 is about 235.9878800153.

Adding to 13142231 its reverse (13224131), we get a palindrome (26366362).

The spelling of 13142231 in words is "thirteen million, one hundred forty-two thousand, two hundred thirty-one".