163085815 has 8 divisors (see below), whose sum is σ = 195783120. Its totient is φ = 130415232.

The previous prime is 163085807. The next prime is 163085837. The reversal of 163085815 is 518580361.

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 163085815 - 2³ = 163085807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11016 + ... + 21154.

It is an arithmetic number, because the mean of its divisors is an integer number (24472890).

Almost surely, 2^163085815 is an apocalyptic number.

163085815 is a deficient number, since it is larger than the sum of its proper divisors (32697305).

163085815 is a wasteful number, since it uses less digits than its factorization.

163085815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 163085815 is about 12770.5056673571. The cubic root of 163085815 is about 546.3514031334.

The spelling of 163085815 in words is "one hundred sixty-three million, eighty-five thousand, eight hundred fifteen".