163506023 has 8 divisors (see below), whose sum is σ = 165124608. Its totient is φ = 161892864.

The previous prime is 163506019. The next prime is 163506037. The reversal of 163506023 is 320605361.

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 163506023 - 2² = 163506019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163505983 and 163506001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163502023) by changing a digit.

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, 84515 + ... + 86427.

It is an arithmetic number, because the mean of its divisors is an integer number (20640576).

Almost surely, 2^163506023 is an apocalyptic number.

163506023 is a deficient number, since it is larger than the sum of its proper divisors (1618585).

163506023 is a wasteful number, since it uses less digits than its factorization.

163506023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 163506023 is about 12786.9473683127. The cubic root of 163506023 is about 546.8202449146.

The spelling of 163506023 in words is "one hundred sixty-three million, five hundred six thousand, twenty-three".