492143969 has 2 divisors, whose sum is σ = 492143970. Its totient is φ = 492143968.

The previous prime is 492143959. The next prime is 492144001. The reversal of 492143969 is 969341294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487879744 + 4264225 = 22088^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 492143969 - 2⁸ = 492143713 is a prime.

It is a super-2 number, since 2×492143969² = 484411372446145922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (492143929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246071984 + 246071985.

It is an arithmetic number, because the mean of its divisors is an integer number (246071985).

Almost surely, 2^492143969 is an apocalyptic number.

It is an amenable number.

492143969 is a deficient number, since it is larger than the sum of its proper divisors (1).

492143969 is an equidigital number, since it uses as much as digits as its factorization.

492143969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 492143969 is about 22184.3180873337. The cubic root of 492143969 is about 789.5216721996.

The spelling of 492143969 in words is "four hundred ninety-two million, one hundred forty-three thousand, nine hundred sixty-nine".