164137406 has 8 divisors (see below), whose sum is σ = 246261384. Its totient is φ = 82050280.

The previous prime is 164137387. The next prime is 164137417. The reversal of 164137406 is 604731461.

164137406 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

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, 9641 + ... + 20523.

It is an arithmetic number, because the mean of its divisors is an integer number (30782673).

Almost surely, 2^164137406 is an apocalyptic number.

164137406 is a deficient number, since it is larger than the sum of its proper divisors (82123978).

164137406 is a wasteful number, since it uses less digits than its factorization.

164137406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18426.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 164137406 is about 12811.6121546041. The cubic root of 164137406 is about 547.5231946694.

Adding to 164137406 its reverse (604731461), we get a palindrome (768868867).

The spelling of 164137406 in words is "one hundred sixty-four million, one hundred thirty-seven thousand, four hundred six".