163426005 has 24 divisors (see below), whose sum is σ = 293765472. Its totient is φ = 87159888.

The previous prime is 163426001. The next prime is 163426019. The reversal of 163426005 is 500624361.

163426005 is a `hidden beast` number, since 1 + 634 + 26 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 163426005 - 2² = 163426001 is a prime.

It is a super-2 number, since 2×163426005² = 53416118220520050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 163426005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163426001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66039 + ... + 68468.

It is an arithmetic number, because the mean of its divisors is an integer number (12240228).

Almost surely, 2^163426005 is an apocalyptic number.

163426005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163426005 is a deficient number, since it is larger than the sum of its proper divisors (130339467).

163426005 is an equidigital number, since it uses as much as digits as its factorization.

163426005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134527 (or 134515 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 163426005 is about 12783.8180916344. The cubic root of 163426005 is about 546.7310278096.

The spelling of 163426005 in words is "one hundred sixty-three million, four hundred twenty-six thousand, five".