164015123 has 4 divisors (see below), whose sum is σ = 164144640. Its totient is φ = 163885608.

The previous prime is 164015107. The next prime is 164015161. The reversal of 164015123 is 321510461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321510461 = 2927 ⋅109843.

It is a cyclic number.

It is not a de Polignac number, because 164015123 - 2⁴ = 164015107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164015723) 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, 62840 + ... + 65397.

It is an arithmetic number, because the mean of its divisors is an integer number (41036160).

Almost surely, 2^164015123 is an apocalyptic number.

164015123 is a deficient number, since it is larger than the sum of its proper divisors (129517).

164015123 is a wasteful number, since it uses less digits than its factorization.

164015123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129516.

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

The square root of 164015123 is about 12806.8389152046. The cubic root of 164015123 is about 547.3871919263.

Adding to 164015123 its reverse (321510461), we get a palindrome (485525584).

The spelling of 164015123 in words is "one hundred sixty-four million, fifteen thousand, one hundred twenty-three".