164418847 has 2 divisors, whose sum is σ = 164418848. Its totient is φ = 164418846.

The previous prime is 164418841. The next prime is 164418853. The reversal of 164418847 is 748814461.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (164418841) and next prime (164418853).

It is an emirp because it is prime and its reverse (748814461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164418847 is a prime.

It is a super-3 number, since 3×164418847³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164418841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82209423 + 82209424.

It is an arithmetic number, because the mean of its divisors is an integer number (82209424).

Almost surely, 2^164418847 is an apocalyptic number.

164418847 is a deficient number, since it is larger than the sum of its proper divisors (1).

164418847 is an equidigital number, since it uses as much as digits as its factorization.

164418847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 43.

The square root of 164418847 is about 12822.5912747775. The cubic root of 164418847 is about 547.8359559687.

The spelling of 164418847 in words is "one hundred sixty-four million, four hundred eighteen thousand, eight hundred forty-seven".