168041431 has 2 divisors, whose sum is σ = 168041432. Its totient is φ = 168041430.

The previous prime is 168041389. The next prime is 168041437. The reversal of 168041431 is 134140861.

It is a strong prime.

It is an emirp because it is prime and its reverse (134140861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168041431 - 2¹¹ = 168039383 is a prime.

It is a super-2 number, since 2×168041431² = 56475845065055522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168041431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168041437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84020715 + 84020716.

It is an arithmetic number, because the mean of its divisors is an integer number (84020716).

Almost surely, 2^168041431 is an apocalyptic number.

168041431 is a deficient number, since it is larger than the sum of its proper divisors (1).

168041431 is an equidigital number, since it uses as much as digits as its factorization.

168041431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 168041431 is about 12963.0795338145. The cubic root of 168041431 is about 551.8301906701.

The spelling of 168041431 in words is "one hundred sixty-eight million, forty-one thousand, four hundred thirty-one".