164320143 has 8 divisors (see below), whose sum is σ = 235946928. Its totient is φ = 101120064.

The previous prime is 164320141. The next prime is 164320171. The reversal of 164320143 is 341023461.

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

It is not a de Polignac number, because 164320143 - 2¹ = 164320141 is a prime.

It is a super-2 number, since 2×164320143² = 54002218791080898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164320141) 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, 2106630 + ... + 2106707.

It is an arithmetic number, because the mean of its divisors is an integer number (29493366).

Almost surely, 2^164320143 is an apocalyptic number.

164320143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164320143 is a deficient number, since it is larger than the sum of its proper divisors (71626785).

164320143 is a wasteful number, since it uses less digits than its factorization.

164320143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213353.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 164320143 is about 12818.7418649413. The cubic root of 164320143 is about 547.7263083111.

The spelling of 164320143 in words is "one hundred sixty-four million, three hundred twenty thousand, one hundred forty-three".