164667285 has 12 divisors (see below), whose sum is σ = 285423372. Its totient is φ = 87822528.

The previous prime is 164667271. The next prime is 164667301. The reversal of 164667285 is 582766461.

It can be written as a sum of positive squares in 2 ways, for example, as 17918289 + 146748996 = 4233^2 + 12114^2 .

It is not a de Polignac number, because 164667285 - 2⁷ = 164667157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3659273 = 164667285 / (1 + 6 + 4 + 6 + 6 + 7 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 164667285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1829592 + ... + 1829681.

It is an arithmetic number, because the mean of its divisors is an integer number (23785281).

Almost surely, 2^164667285 is an apocalyptic number.

164667285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164667285 is a deficient number, since it is larger than the sum of its proper divisors (120756087).

164667285 is a wasteful number, since it uses less digits than its factorization.

164667285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659284 (or 3659281 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 164667285 is about 12832.2751295318. The cubic root of 164667285 is about 548.1117450650. Note that the first 3 decimals are identical.

The spelling of 164667285 in words is "one hundred sixty-four million, six hundred sixty-seven thousand, two hundred eighty-five".