163242623 has 4 divisors (see below), whose sum is σ = 171834360. Its totient is φ = 154650888.

The previous prime is 163242601. The next prime is 163242641. The reversal of 163242623 is 326242361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163242623 - 2¹² = 163238527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163242223) 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, 4295840 + ... + 4295877.

It is an arithmetic number, because the mean of its divisors is an integer number (42958590).

Almost surely, 2^163242623 is an apocalyptic number.

163242623 is a deficient number, since it is larger than the sum of its proper divisors (8591737).

163242623 is an equidigital number, since it uses as much as digits as its factorization.

163242623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591736.

The product of its digits is 10368, while the sum is 29.

The square root of 163242623 is about 12776.6436516012. The cubic root of 163242623 is about 546.5264537703.

Adding to 163242623 its reverse (326242361), we get a palindrome (489484984).

The spelling of 163242623 in words is "one hundred sixty-three million, two hundred forty-two thousand, six hundred twenty-three".