163554423 has 4 divisors (see below), whose sum is σ = 218072568. Its totient is φ = 109036280.

The previous prime is 163554401. The next prime is 163554427. The reversal of 163554423 is 324455361.

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 163554423 - 2¹³ = 163546231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163554427) 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, 27259068 + ... + 27259073.

It is an arithmetic number, because the mean of its divisors is an integer number (54518142).

Almost surely, 2^163554423 is an apocalyptic number.

163554423 is a deficient number, since it is larger than the sum of its proper divisors (54518145).

163554423 is an equidigital number, since it uses as much as digits as its factorization.

163554423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54518144.

The product of its digits is 43200, while the sum is 33.

The square root of 163554423 is about 12788.8397831860. The cubic root of 163554423 is about 546.8741949942.

The spelling of 163554423 in words is "one hundred sixty-three million, five hundred fifty-four thousand, four hundred twenty-three".