164137426 has 8 divisors (see below), whose sum is σ = 246809340. Its totient is φ = 81867648.

The previous prime is 164137417. The next prime is 164137433. The reversal of 164137426 is 624731461.

It can be written as a sum of positive squares in 2 ways, for example, as 162180225 + 1957201 = 12735^2 + 1399^2 .

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

It is a super-2 number, since 2×164137426² = 53882189227810952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164137391 and 164137400.

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, 99511 + ... + 101146.

Almost surely, 2^164137426 is an apocalyptic number.

164137426 is a deficient number, since it is larger than the sum of its proper divisors (82671914).

164137426 is a wasteful number, since it uses less digits than its factorization.

164137426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201068.

The product of its digits is 24192, while the sum is 34.

The square root of 164137426 is about 12811.6129351460. The cubic root of 164137426 is about 547.5232169078.

Adding to 164137426 its reverse (624731461), we get a palindrome (788868887).

The spelling of 164137426 in words is "one hundred sixty-four million, one hundred thirty-seven thousand, four hundred twenty-six".