164532489 has 16 divisors (see below), whose sum is σ = 242694144. Its totient is φ = 98310800.

The previous prime is 164532461. The next prime is 164532497. The reversal of 164532489 is 984235461.

164532489 = T₃₇₄ + T₃₇₅ + ... + T₁₀₁₂.

It is a cyclic number.

It is not a de Polignac number, because 164532489 - 2¹⁵ = 164499721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164532489.

It is not an unprimeable number, because it can be changed into a prime (164532449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32769 + ... + 37454.

It is an arithmetic number, because the mean of its divisors is an integer number (15168384).

Almost surely, 2^164532489 is an apocalyptic number.

It is an amenable number.

164532489 is a deficient number, since it is larger than the sum of its proper divisors (78161655).

164532489 is a wasteful number, since it uses less digits than its factorization.

164532489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70308.

The product of its digits is 207360, while the sum is 42.

The square root of 164532489 is about 12827.0218289360. The cubic root of 164532489 is about 547.9621435213.

The spelling of 164532489 in words is "one hundred sixty-four million, five hundred thirty-two thousand, four hundred eighty-nine".