164645284 has 6 divisors (see below), whose sum is σ = 288129254. Its totient is φ = 82322640.

The previous prime is 164645269. The next prime is 164645291. The reversal of 164645284 is 482546461.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 78712384 = 9270^2 + 8872^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20580657 + ... + 20580664.

Almost surely, 2^164645284 is an apocalyptic number.

It is an amenable number.

164645284 is a deficient number, since it is larger than the sum of its proper divisors (123483970).

164645284 is a wasteful number, since it uses less digits than its factorization.

164645284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41161325 (or 41161323 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 164645284 is about 12831.4178483907. The cubic root of 164645284 is about 548.0873331251.

The spelling of 164645284 in words is "one hundred sixty-four million, six hundred forty-five thousand, two hundred eighty-four".