163042849 has 2 divisors, whose sum is σ = 163042850. Its totient is φ = 163042848.

The previous prime is 163042771. The next prime is 163042853. The reversal of 163042849 is 948240361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163021824 + 21025 = 12768^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 163042849 - 2⁷ = 163042721 is a prime.

It is a super-2 number, since 2×163042849² = 53165941220073602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163042879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81521424 + 81521425.

It is an arithmetic number, because the mean of its divisors is an integer number (81521425).

Almost surely, 2^163042849 is an apocalyptic number.

It is an amenable number.

163042849 is a deficient number, since it is larger than the sum of its proper divisors (1).

163042849 is an equidigital number, since it uses as much as digits as its factorization.

163042849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 163042849 is about 12768.8233208859. The cubic root of 163042849 is about 546.3034189966.

The spelling of 163042849 in words is "one hundred sixty-three million, forty-two thousand, eight hundred forty-nine".