164132625 has 16 divisors (see below), whose sum is σ = 273117312. Its totient is φ = 87537200.

The previous prime is 164132611. The next prime is 164132681. The reversal of 164132625 is 526231461.

It is not a de Polignac number, because 164132625 - 2⁵ = 164132593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164132592 and 164132601.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 218469 + ... + 219218.

It is an arithmetic number, because the mean of its divisors is an integer number (17069832).

Almost surely, 2^164132625 is an apocalyptic number.

164132625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164132625 is a deficient number, since it is larger than the sum of its proper divisors (108984687).

164132625 is an equidigital number, since it uses as much as digits as its factorization.

164132625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437705 (or 437695 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 164132625 is about 12811.4255647059. The cubic root of 164132625 is about 547.5178785263.

The spelling of 164132625 in words is "one hundred sixty-four million, one hundred thirty-two thousand, six hundred twenty-five".