164383481 has 2 divisors, whose sum is σ = 164383482. Its totient is φ = 164383480.

The previous prime is 164383463. The next prime is 164383501. The reversal of 164383481 is 184383461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90079081 + 74304400 = 9491^2 + 8620^2 .

It is an emirp because it is prime and its reverse (184383461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164383481 - 2¹⁰ = 164382457 is a prime.

It is a super-2 number, since 2×164383481² = 54043857651354722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164383411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82191740 + 82191741.

It is an arithmetic number, because the mean of its divisors is an integer number (82191741).

Almost surely, 2^164383481 is an apocalyptic number.

It is an amenable number.

164383481 is a deficient number, since it is larger than the sum of its proper divisors (1).

164383481 is an equidigital number, since it uses as much as digits as its factorization.

164383481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 164383481 is about 12821.2121501830. The cubic root of 164383481 is about 547.7966738627.

The spelling of 164383481 in words is "one hundred sixty-four million, three hundred eighty-three thousand, four hundred eighty-one".