164525113 has 4 divisors (see below), whose sum is σ = 167222308. Its totient is φ = 161827920.

The previous prime is 164525111. The next prime is 164525131. The reversal of 164525113 is 311525461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311525461 = 13 ⋅23963497.

It can be written as a sum of positive squares in 2 ways, for example, as 2650384 + 161874729 = 1628^2 + 12723^2 .

It is a cyclic number.

It is not a de Polignac number, because 164525113 - 2¹ = 164525111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164525111) 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, 1348506 + ... + 1348627.

It is an arithmetic number, because the mean of its divisors is an integer number (41805577).

Almost surely, 2^164525113 is an apocalyptic number.

It is an amenable number.

164525113 is a deficient number, since it is larger than the sum of its proper divisors (2697195).

164525113 is an equidigital number, since it uses as much as digits as its factorization.

164525113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697194.

The product of its digits is 3600, while the sum is 28.

The square root of 164525113 is about 12826.7343076872. The cubic root of 164525113 is about 547.9539550085.

The spelling of 164525113 in words is "one hundred sixty-four million, five hundred twenty-five thousand, one hundred thirteen".