164745527 has 4 divisors (see below), whose sum is σ = 171908400. Its totient is φ = 157582656.

The previous prime is 164745517. The next prime is 164745541. The reversal of 164745527 is 725547461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725547461 = 1063 ⋅682547.

It is a cyclic number.

It is not a de Polignac number, because 164745527 - 2⁶ = 164745463 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 (164745517) 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, 3581402 + ... + 3581447.

It is an arithmetic number, because the mean of its divisors is an integer number (42977100).

Almost surely, 2^164745527 is an apocalyptic number.

164745527 is a deficient number, since it is larger than the sum of its proper divisors (7162873).

164745527 is an equidigital number, since it uses as much as digits as its factorization.

164745527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162872.

The product of its digits is 235200, while the sum is 41.

The square root of 164745527 is about 12835.3234084693. The cubic root of 164745527 is about 548.1985434610.

It can be divided in two parts, 1647 and 45527, that added together give a palindrome (47174).

The spelling of 164745527 in words is "one hundred sixty-four million, seven hundred forty-five thousand, five hundred twenty-seven".