123163005 has 16 divisors (see below), whose sum is σ = 225212544. Its totient is φ = 56303040.

The previous prime is 123162989. The next prime is 123163009. The reversal of 123163005 is 500361321.

It is not a de Polignac number, because 123163005 - 2⁴ = 123162989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123163009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586386 + ... + 586595.

It is an arithmetic number, because the mean of its divisors is an integer number (14075784).

Almost surely, 2^123163005 is an apocalyptic number.

123163005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123163005 is a deficient number, since it is larger than the sum of its proper divisors (102049539).

123163005 is a wasteful number, since it uses less digits than its factorization.

123163005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172996.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 123163005 is about 11097.8829062123. The cubic root of 123163005 is about 497.5385760009.

The spelling of 123163005 in words is "one hundred twenty-three million, one hundred sixty-three thousand, five".