164142605 has 16 divisors (see below), whose sum is σ = 224221824. Its totient is φ = 114185280.

The previous prime is 164142593. The next prime is 164142631. The reversal of 164142605 is 506241461.

It is not a de Polignac number, because 164142605 - 2¹⁰ = 164141581 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 63614 + ... + 66143.

It is an arithmetic number, because the mean of its divisors is an integer number (14013864).

Almost surely, 2^164142605 is an apocalyptic number.

It is an amenable number.

164142605 is a deficient number, since it is larger than the sum of its proper divisors (60079219).

164142605 is a wasteful number, since it uses less digits than its factorization.

164142605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129796.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 164142605 is about 12811.8150548624. The cubic root of 164142605 is about 547.5289754825.

The spelling of 164142605 in words is "one hundred sixty-four million, one hundred forty-two thousand, six hundred five".