164311405 has 16 divisors (see below), whose sum is σ = 199355904. Its totient is φ = 130003200.

The previous prime is 164311391. The next prime is 164311429. The reversal of 164311405 is 504113461.

It is not a de Polignac number, because 164311405 - 2⁹ = 164310893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164311405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276789 + ... + 277381.

It is an arithmetic number, because the mean of its divisors is an integer number (12459744).

Almost surely, 2^164311405 is an apocalyptic number.

It is an amenable number.

164311405 is a deficient number, since it is larger than the sum of its proper divisors (35044499).

164311405 is a wasteful number, since it uses less digits than its factorization.

164311405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 164311405 is about 12818.4010313299. The cubic root of 164311405 is about 547.7165993831.

Adding to 164311405 its reverse (504113461), we get a palindrome (668424866).

The spelling of 164311405 in words is "one hundred sixty-four million, three hundred eleven thousand, four hundred five".