163426 has 8 divisors (see below), whose sum is σ = 251244. Its totient is φ = 79680.

The previous prime is 163417. The next prime is 163433. The reversal of 163426 is 624361.

163426 = T₆₈ + T₆₉ + ... + T₁₀₈.

It can be written as a sum of positive squares in 2 ways, for example, as 159201 + 4225 = 399^2 + 65^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 163397 and 163406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915 + ... + 1078.

2¹⁶³⁴²⁶ is an apocalyptic number.

163426 is a deficient number, since it is larger than the sum of its proper divisors (87818).

163426 is a wasteful number, since it uses less digits than its factorization.

163426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its digits is 864, while the sum is 22.

The square root of 163426 is about 404.2598174442. The cubic root of 163426 is about 54.6731022234.

Adding to 163426 its reverse (624361), we get a palindrome (787787).

The spelling of 163426 in words is "one hundred sixty-three thousand, four hundred twenty-six".