163382521 has 8 divisors (see below), whose sum is σ = 164952000. Its totient is φ = 161820048.

The previous prime is 163382503. The next prime is 163382537. The reversal of 163382521 is 125283361.

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

It is a cyclic number.

It is not a de Polignac number, because 163382521 - 2¹⁷ = 163251449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163302521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52980 + ... + 55978.

It is an arithmetic number, because the mean of its divisors is an integer number (20619000).

Almost surely, 2^163382521 is an apocalyptic number.

It is an amenable number.

163382521 is a deficient number, since it is larger than the sum of its proper divisors (1569479).

163382521 is a wasteful number, since it uses less digits than its factorization.

163382521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503.

The product of its digits is 8640, while the sum is 31.

The square root of 163382521 is about 12782.1172346368. The cubic root of 163382521 is about 546.6825325473.

The spelling of 163382521 in words is "one hundred sixty-three million, three hundred eighty-two thousand, five hundred twenty-one".