164033465 has 4 divisors (see below), whose sum is σ = 196840164. Its totient is φ = 131226768.

The previous prime is 164033449. The next prime is 164033473. The reversal of 164033465 is 564330461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564330461 = 23 ⋅24536107.

It can be written as a sum of positive squares in 2 ways, for example, as 112423609 + 51609856 = 10603^2 + 7184^2 .

It is a cyclic number.

It is not a de Polignac number, because 164033465 - 2⁴ = 164033449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16403342 + ... + 16403351.

It is an arithmetic number, because the mean of its divisors is an integer number (49210041).

Almost surely, 2^164033465 is an apocalyptic number.

It is an amenable number.

164033465 is a deficient number, since it is larger than the sum of its proper divisors (32806699).

164033465 is an equidigital number, since it uses as much as digits as its factorization.

164033465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32806698.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 164033465 is about 12807.5549969539. The cubic root of 164033465 is about 547.4075961456.

The spelling of 164033465 in words is "one hundred sixty-four million, thirty-three thousand, four hundred sixty-five".