164474293 has 2 divisors, whose sum is σ = 164474294. Its totient is φ = 164474292.

The previous prime is 164474273. The next prime is 164474333. The reversal of 164474293 is 392474461.

It is an a-pointer prime, because the next prime (164474333) can be obtained adding 164474293 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100841764 + 63632529 = 10042^2 + 7977^2 .

It is a cyclic number.

It is not a de Polignac number, because 164474293 - 2¹³ = 164466101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164474243) by changing a digit.

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 as a sum of consecutive naturals, namely, 82237146 + 82237147.

It is an arithmetic number, because the mean of its divisors is an integer number (82237147).

Almost surely, 2^164474293 is an apocalyptic number.

It is an amenable number.

164474293 is a deficient number, since it is larger than the sum of its proper divisors (1).

164474293 is an equidigital number, since it uses as much as digits as its factorization.

164474293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 164474293 is about 12824.7531360257. The cubic root of 164474293 is about 547.8975302127.

The spelling of 164474293 in words is "one hundred sixty-four million, four hundred seventy-four thousand, two hundred ninety-three".