164365501 has 4 divisors (see below), whose sum is σ = 164745532. Its totient is φ = 163985472.

The previous prime is 164365499. The next prime is 164365517. The reversal of 164365501 is 105563461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96550276 + 67815225 = 9826^2 + 8235^2 .

It is a cyclic number.

It is not a de Polignac number, because 164365501 - 2¹ = 164365499 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 (164365541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189366 + ... + 190231.

It is an arithmetic number, because the mean of its divisors is an integer number (41186383).

Almost surely, 2^164365501 is an apocalyptic number.

It is an amenable number.

164365501 is a deficient number, since it is larger than the sum of its proper divisors (380031).

164365501 is an equidigital number, since it uses as much as digits as its factorization.

164365501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380030.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 164365501 is about 12820.5109492563. The cubic root of 164365501 is about 547.7767007622.

The spelling of 164365501 in words is "one hundred sixty-four million, three hundred sixty-five thousand, five hundred one".