13170431 has 2 divisors, whose sum is σ = 13170432. Its totient is φ = 13170430.

The previous prime is 13170419. The next prime is 13170457. The reversal of 13170431 is 13407131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13170431 - 2¹⁴ = 13154047 is a prime.

It is a super-2 number, since 2×13170431² = 346920505451522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13170491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585215 + 6585216.

It is an arithmetic number, because the mean of its divisors is an integer number (6585216).

Almost surely, 2^13170431 is an apocalyptic number.

13170431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13170431 is an equidigital number, since it uses as much as digits as its factorization.

13170431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13170431 is about 3629.1088437797. The cubic root of 13170431 is about 236.1565501086.

Adding to 13170431 its reverse (13407131), we get a palindrome (26577562).

The spelling of 13170431 in words is "thirteen million, one hundred seventy thousand, four hundred thirty-one".