163017423 has 6 divisors (see below), whose sum is σ = 235469624. Its totient is φ = 108678276.

The previous prime is 163017419. The next prime is 163017427. The reversal of 163017423 is 324710361.

163017423 is a `hidden beast` number, since 1 + 630 + 1 + 7 + 4 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (163017419) and next prime (163017427).

It is not a de Polignac number, because 163017423 - 2² = 163017419 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 (163017427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9056515 + ... + 9056532.

Almost surely, 2^163017423 is an apocalyptic number.

163017423 is a deficient number, since it is larger than the sum of its proper divisors (72452201).

163017423 is a wasteful number, since it uses less digits than its factorization.

163017423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113053 (or 18113050 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 163017423 is about 12767.8276539120. The cubic root of 163017423 is about 546.2750194420.

Adding to 163017423 its reverse (324710361), we get a palindrome (487727784).

The spelling of 163017423 in words is "one hundred sixty-three million, seventeen thousand, four hundred twenty-three".