164613143 has 4 divisors (see below), whose sum is σ = 164658288. Its totient is φ = 164568000.

The previous prime is 164613121. The next prime is 164613149. The reversal of 164613143 is 341316461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164613143 - 2¹² = 164609047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164613149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16571 + ... + 24572.

It is an arithmetic number, because the mean of its divisors is an integer number (41164572).

Almost surely, 2^164613143 is an apocalyptic number.

164613143 is a deficient number, since it is larger than the sum of its proper divisors (45145).

164613143 is an equidigital number, since it uses as much as digits as its factorization.

164613143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45144.

The product of its digits is 5184, while the sum is 29.

The square root of 164613143 is about 12830.1653535720. The cubic root of 164613143 is about 548.0516661021.

The spelling of 164613143 in words is "one hundred sixty-four million, six hundred thirteen thousand, one hundred forty-three".