164652729 has 4 divisors (see below), whose sum is σ = 219536976. Its totient is φ = 109768484.

The previous prime is 164652707. The next prime is 164652743. The reversal of 164652729 is 927256461.

164652729 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164652729 - 2⁷ = 164652601 is a prime.

It is a super-2 number, since 2×164652729² = 54221042334294882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164652529) 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, 27442119 + ... + 27442124.

It is an arithmetic number, because the mean of its divisors is an integer number (54884244).

Almost surely, 2^164652729 is an apocalyptic number.

It is an amenable number.

164652729 is a deficient number, since it is larger than the sum of its proper divisors (54884247).

164652729 is an equidigital number, since it uses as much as digits as its factorization.

164652729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54884246.

The product of its digits is 181440, while the sum is 42.

The square root of 164652729 is about 12831.7079533474. The cubic root of 164652729 is about 548.0955942155.

The spelling of 164652729 in words is "one hundred sixty-four million, six hundred fifty-two thousand, seven hundred twenty-nine".