492189431 has 2 divisors, whose sum is σ = 492189432. Its totient is φ = 492189430.

The previous prime is 492189367. The next prime is 492189493. The reversal of 492189431 is 134981294.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 492189431 - 2⁶ = 492189367 is a prime.

It is a super-2 number, since 2×492189431² = 484500871976207522, which contains 22 as substring.

It is equal to p_25965725 and since 492189431 and 25965725 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492189631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246094715 + 246094716.

It is an arithmetic number, because the mean of its divisors is an integer number (246094716).

Almost surely, 2^492189431 is an apocalyptic number.

492189431 is a deficient number, since it is larger than the sum of its proper divisors (1).

492189431 is an equidigital number, since it uses as much as digits as its factorization.

492189431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 492189431 is about 22185.3427063906. The cubic root of 492189431 is about 789.5459822467.

The spelling of 492189431 in words is "four hundred ninety-two million, one hundred eighty-nine thousand, four hundred thirty-one".