164654243 has 8 divisors (see below), whose sum is σ = 178029936. Its totient is φ = 151380000.

The previous prime is 164654233. The next prime is 164654261. The reversal of 164654243 is 342456461.

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 164654243 - 2⁶ = 164654179 is a prime.

It is a super-2 number, since 2×164654243² = 54222039475806098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164654233) 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, 21968 + ... + 28493.

It is an arithmetic number, because the mean of its divisors is an integer number (22253742).

Almost surely, 2^164654243 is an apocalyptic number.

164654243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164654243 is a deficient number, since it is larger than the sum of its proper divisors (13375693).

164654243 is a wasteful number, since it uses less digits than its factorization.

164654243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50725.

The product of its digits is 69120, while the sum is 35.

The square root of 164654243 is about 12831.7669476966. The cubic root of 164654243 is about 548.0972741435.

The spelling of 164654243 in words is "one hundred sixty-four million, six hundred fifty-four thousand, two hundred forty-three".