164332243 has 4 divisors (see below), whose sum is σ = 165420688. Its totient is φ = 163243800.

The previous prime is 164332229. The next prime is 164332247. The reversal of 164332243 is 342233461.

164332243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164332243 - 2⁵ = 164332211 is a prime.

It is a super-2 number, since 2×164332243² = 54010172178822098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164332247) 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, 543996 + ... + 544297.

It is an arithmetic number, because the mean of its divisors is an integer number (41355172).

Almost surely, 2^164332243 is an apocalyptic number.

164332243 is a deficient number, since it is larger than the sum of its proper divisors (1088445).

164332243 is a wasteful number, since it uses less digits than its factorization.

164332243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088444.

The product of its digits is 10368, while the sum is 28.

The square root of 164332243 is about 12819.2138214479. The cubic root of 164332243 is about 547.7397522414.

The spelling of 164332243 in words is "one hundred sixty-four million, three hundred thirty-two thousand, two hundred forty-three".