164101523 has 4 divisors (see below), whose sum is σ = 164245248. Its totient is φ = 163957800.

The previous prime is 164101501. The next prime is 164101547. The reversal of 164101523 is 325101461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325101461 = 149 ⋅2181889.

It is a cyclic number.

It is not a de Polignac number, because 164101523 - 2¹⁰ = 164100499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164101583) 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, 70136 + ... + 72437.

It is an arithmetic number, because the mean of its divisors is an integer number (41061312).

Almost surely, 2^164101523 is an apocalyptic number.

164101523 is a deficient number, since it is larger than the sum of its proper divisors (143725).

164101523 is a wasteful number, since it uses less digits than its factorization.

164101523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143724.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 164101523 is about 12810.2116688211. The cubic root of 164101523 is about 547.4832927215.

Adding to 164101523 its reverse (325101461), we get a palindrome (489202984).

The spelling of 164101523 in words is "one hundred sixty-four million, one hundred one thousand, five hundred twenty-three".