164426943 has 8 divisors (see below), whose sum is σ = 219726000. Its totient is φ = 109372928.

The previous prime is 164426939. The next prime is 164426947. The reversal of 164426943 is 349624461.

It is an interprime number because it is at equal distance from previous prime (164426939) and next prime (164426947).

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 164426943 - 2² = 164426939 is a prime.

It is a super-3 number, since 3×164426943³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164426947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59688 + ... + 62381.

It is an arithmetic number, because the mean of its divisors is an integer number (27465750).

Almost surely, 2^164426943 is an apocalyptic number.

164426943 is a deficient number, since it is larger than the sum of its proper divisors (55299057).

164426943 is a wasteful number, since it uses less digits than its factorization.

164426943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122521.

The product of its digits is 124416, while the sum is 39.

The square root of 164426943 is about 12822.9069637115. The cubic root of 164426943 is about 547.8449476530.

The spelling of 164426943 in words is "one hundred sixty-four million, four hundred twenty-six thousand, nine hundred forty-three".