164015393 has 2 divisors, whose sum is σ = 164015394. Its totient is φ = 164015392.

The previous prime is 164015381. The next prime is 164015417. The reversal of 164015393 is 393510461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 69089344 = 9743^2 + 8312^2 .

It is a cyclic number.

It is not a de Polignac number, because 164015393 - 2¹⁴ = 163999009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164015363) by changing a digit.

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 as a sum of consecutive naturals, namely, 82007696 + 82007697.

It is an arithmetic number, because the mean of its divisors is an integer number (82007697).

Almost surely, 2^164015393 is an apocalyptic number.

It is an amenable number.

164015393 is a deficient number, since it is larger than the sum of its proper divisors (1).

164015393 is an equidigital number, since it uses as much as digits as its factorization.

164015393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 164015393 is about 12806.8494564432. The cubic root of 164015393 is about 547.3874922938.

The spelling of 164015393 in words is "one hundred sixty-four million, fifteen thousand, three hundred ninety-three".