164351973 has 8 divisors (see below), whose sum is σ = 219292000. Its totient is φ = 109489968.

The previous prime is 164351969. The next prime is 164351989. The reversal of 164351973 is 379153461.

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

It is not a de Polignac number, because 164351973 - 2² = 164351969 is a prime.

It is a super-3 number, since 3×164351973³ (a number of 26 digits) contains 333 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 (164351923) 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, 14398 + ... + 23151.

It is an arithmetic number, because the mean of its divisors is an integer number (27411500).

Almost surely, 2^164351973 is an apocalyptic number.

It is an amenable number.

164351973 is a deficient number, since it is larger than the sum of its proper divisors (54940027).

164351973 is a wasteful number, since it uses less digits than its factorization.

164351973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39011.

The product of its digits is 68040, while the sum is 39.

The square root of 164351973 is about 12819.9833463230. The cubic root of 164351973 is about 547.7616722101.

The spelling of 164351973 in words is "one hundred sixty-four million, three hundred fifty-one thousand, nine hundred seventy-three".