164629 has 4 divisors (see below), whose sum is σ = 165676. Its totient is φ = 163584.

The previous prime is 164627. The next prime is 164653. The reversal of 164629 is 926461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22500 + 142129 = 150^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 164629 - 2¹ = 164627 is a prime.

It is a Duffinian number.

164629 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 164597 and 164606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234 + ... + 619.

It is an arithmetic number, because the mean of its divisors is an integer number (41419).

2¹⁶⁴⁶²⁹ is an apocalyptic number.

It is an amenable number.

164629 is a deficient number, since it is larger than the sum of its proper divisors (1047).

164629 is an equidigital number, since it uses as much as digits as its factorization.

164629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 2592, while the sum is 28.

The square root of 164629 is about 405.7449938077. The cubic root of 164629 is about 54.8069263272.

It can be divided in two parts, 16462 and 9, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 164629 in words is "one hundred sixty-four thousand, six hundred twenty-nine".