164520547 has 2 divisors, whose sum is σ = 164520548. Its totient is φ = 164520546.

The previous prime is 164520529. The next prime is 164520569. The reversal of 164520547 is 745025461.

164520547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164520547 is a prime.

It is not a weakly prime, because it can be changed into another prime (164520527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82260273 + 82260274.

It is an arithmetic number, because the mean of its divisors is an integer number (82260274).

Almost surely, 2^164520547 is an apocalyptic number.

164520547 is a deficient number, since it is larger than the sum of its proper divisors (1).

164520547 is an equidigital number, since it uses as much as digits as its factorization.

164520547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 164520547 is about 12826.5563188254. The cubic root of 164520547 is about 547.9488859122.

The spelling of 164520547 in words is "one hundred sixty-four million, five hundred twenty thousand, five hundred forty-seven".