163283021 has 8 divisors (see below), whose sum is σ = 184269600. Its totient is φ = 143320240.

The previous prime is 163282993. The next prime is 163283027. The reversal of 163283021 is 120382361.

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 163283021 - 2¹⁴ = 163266637 is a prime.

It is a super-2 number, since 2×163283021² = 53322689893772882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163283027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 255611 + ... + 256248.

It is an arithmetic number, because the mean of its divisors is an integer number (23033700).

Almost surely, 2^163283021 is an apocalyptic number.

163283021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163283021 is a deficient number, since it is larger than the sum of its proper divisors (20986579).

163283021 is a wasteful number, since it uses less digits than its factorization.

163283021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511899.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 163283021 is about 12778.2244854283. The cubic root of 163283021 is about 546.5715334075.

The spelling of 163283021 in words is "one hundred sixty-three million, two hundred eighty-three thousand, twenty-one".