163042755 has 16 divisors (see below), whose sum is σ = 261127680. Its totient is φ = 86869728.

The previous prime is 163042753. The next prime is 163042771. The reversal of 163042755 is 557240361.

It is not a de Polignac number, because 163042755 - 2¹ = 163042753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163042753) 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 in 15 ways as a sum of consecutive naturals, for example, 12006 + ... + 21684.

It is an arithmetic number, because the mean of its divisors is an integer number (16320480).

Almost surely, 2^163042755 is an apocalyptic number.

163042755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163042755 is a deficient number, since it is larger than the sum of its proper divisors (98084925).

163042755 is a wasteful number, since it uses less digits than its factorization.

163042755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 163042755 is about 12768.8196400450. The cubic root of 163042755 is about 546.3033140088.

The spelling of 163042755 in words is "one hundred sixty-three million, forty-two thousand, seven hundred fifty-five".