163945010 has 8 divisors (see below), whose sum is σ = 295101036. Its totient is φ = 65578000.

The previous prime is 163944983. The next prime is 163945087. The reversal of 163945010 is 10549361.

It can be written as a sum of positive squares in 2 ways, for example, as 147792649 + 16152361 = 12157^2 + 4019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8197241 + ... + 8197260.

Almost surely, 2^163945010 is an apocalyptic number.

163945010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163945010 is a deficient number, since it is larger than the sum of its proper divisors (131156026).

163945010 is a wasteful number, since it uses less digits than its factorization.

163945010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16394508.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 163945010 is about 12804.1012960692. The cubic root of 163945010 is about 547.3091819893.

The spelling of 163945010 in words is "one hundred sixty-three million, nine hundred forty-five thousand, ten".