164371247 has 2 divisors, whose sum is σ = 164371248. Its totient is φ = 164371246.

The previous prime is 164371213. The next prime is 164371297. The reversal of 164371247 is 742173461.

It is a weak prime.

It is an emirp because it is prime and its reverse (742173461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164371247 - 2⁶ = 164371183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164371297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82185623 + 82185624.

It is an arithmetic number, because the mean of its divisors is an integer number (82185624).

Almost surely, 2^164371247 is an apocalyptic number.

164371247 is a deficient number, since it is larger than the sum of its proper divisors (1).

164371247 is an equidigital number, since it uses as much as digits as its factorization.

164371247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 164371247 is about 12820.7350413305. The cubic root of 164371247 is about 547.7830838703.

The spelling of 164371247 in words is "one hundred sixty-four million, three hundred seventy-one thousand, two hundred forty-seven".