164143125 has 80 divisors (see below), whose sum is σ = 310400640. Its totient is φ = 85680000.

The previous prime is 164143123. The next prime is 164143151. The reversal of 164143125 is 521341461.

It is a happy number.

164143125 is a `hidden beast` number, since 1 + 641 + 4 + 3 + 12 + 5 = 666.

It is not a de Polignac number, because 164143125 - 2¹ = 164143123 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164143123) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1198057 + ... + 1198193.

It is an arithmetic number, because the mean of its divisors is an integer number (3880008).

Almost surely, 2^164143125 is an apocalyptic number.

164143125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164143125 is a deficient number, since it is larger than the sum of its proper divisors (146257515).

164143125 is an equidigital number, since it uses as much as digits as its factorization.

164143125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 216 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 164143125 is about 12811.8353486142. The cubic root of 164143125 is about 547.5295536683.

Adding to 164143125 its reverse (521341461), we get a palindrome (685484586).

The spelling of 164143125 in words is "one hundred sixty-four million, one hundred forty-three thousand, one hundred twenty-five".