163016493 has 4 divisors (see below), whose sum is σ = 217355328. Its totient is φ = 108677660.

The previous prime is 163016489. The next prime is 163016509. The reversal of 163016493 is 394610361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163016493 - 2² = 163016489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163016443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27169413 + ... + 27169418.

It is an arithmetic number, because the mean of its divisors is an integer number (54338832).

Almost surely, 2^163016493 is an apocalyptic number.

It is an amenable number.

163016493 is a deficient number, since it is larger than the sum of its proper divisors (54338835).

163016493 is an equidigital number, since it uses as much as digits as its factorization.

163016493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54338834.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 163016493 is about 12767.7912341955. The cubic root of 163016493 is about 546.2739806231.

The spelling of 163016493 in words is "one hundred sixty-three million, sixteen thousand, four hundred ninety-three".