163173340 has 36 divisors (see below), whose sum is σ = 376652808. Its totient is φ = 59334880.

The previous prime is 163173319. The next prime is 163173359. The reversal of 163173340 is 43371361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163173299 and 163173308.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31294 + ... + 36133.

It is an arithmetic number, because the mean of its divisors is an integer number (10462578).

Almost surely, 2^163173340 is an apocalyptic number.

163173340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163173340 is an abundant number, since it is smaller than the sum of its proper divisors (213479468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163173340 is a wasteful number, since it uses less digits than its factorization.

163173340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67458 (or 67445 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 163173340 is about 12773.9320492948. The cubic root of 163173340 is about 546.4491243945.

The spelling of 163173340 in words is "one hundred sixty-three million, one hundred seventy-three thousand, three hundred forty".