164041381 has 8 divisors (see below), whose sum is σ = 198504000. Its totient is φ = 132335808.

The previous prime is 164041373. The next prime is 164041399. The reversal of 164041381 is 183140461.

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

It is a cyclic number.

It is not a de Polignac number, because 164041381 - 2³ = 164041373 is a prime.

It is a super-2 number, since 2×164041381² = 53819149360774322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164041321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689131 + ... + 689368.

It is an arithmetic number, because the mean of its divisors is an integer number (24813000).

Almost surely, 2^164041381 is an apocalyptic number.

It is an amenable number.

164041381 is a deficient number, since it is larger than the sum of its proper divisors (34462619).

164041381 is a wasteful number, since it uses less digits than its factorization.

164041381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378523.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 164041381 is about 12807.8640295718. The cubic root of 164041381 is about 547.4164016838.

The spelling of 164041381 in words is "one hundred sixty-four million, forty-one thousand, three hundred eighty-one".