164493365 has 8 divisors (see below), whose sum is σ = 204198840. Its totient is φ = 127056832.

The previous prime is 164493359. The next prime is 164493383. The reversal of 164493365 is 563394461.

It can be written as a sum of positive squares in 4 ways, for example, as 15311569 + 149181796 = 3913^2 + 12214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164493365 - 2⁴ = 164493349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567074 + ... + 567363.

It is an arithmetic number, because the mean of its divisors is an integer number (25524855).

Almost surely, 2^164493365 is an apocalyptic number.

It is an amenable number.

164493365 is a deficient number, since it is larger than the sum of its proper divisors (39705475).

164493365 is a wasteful number, since it uses less digits than its factorization.

164493365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134471.

The product of its digits is 233280, while the sum is 41.

The square root of 164493365 is about 12825.4966765424. The cubic root of 164493365 is about 547.9187069726.

The spelling of 164493365 in words is "one hundred sixty-four million, four hundred ninety-three thousand, three hundred sixty-five".