164531523 has 16 divisors (see below), whose sum is σ = 236678400. Its totient is φ = 101066784.

The previous prime is 164531519. The next prime is 164531527. The reversal of 164531523 is 325135461.

164531523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164531519) and next prime (164531527).

It is not a de Polignac number, because 164531523 - 2² = 164531519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164531527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19840 + ... + 26882.

It is an arithmetic number, because the mean of its divisors is an integer number (14792400).

Almost surely, 2^164531523 is an apocalyptic number.

164531523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164531523 is a deficient number, since it is larger than the sum of its proper divisors (72146877).

164531523 is a wasteful number, since it uses less digits than its factorization.

164531523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658.

The product of its digits is 10800, while the sum is 30.

The square root of 164531523 is about 12826.9841739982. The cubic root of 164531523 is about 547.9610711242.

Adding to 164531523 its reverse (325135461), we get a palindrome (489666984).

The spelling of 164531523 in words is "one hundred sixty-four million, five hundred thirty-one thousand, five hundred twenty-three".