164362481 has 4 divisors (see below), whose sum is σ = 168371364. Its totient is φ = 160353600.

The previous prime is 164362463. The next prime is 164362501. The reversal of 164362481 is 184263461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184263461 = 73 ⋅2524157.

It can be written as a sum of positive squares in 2 ways, for example, as 29593600 + 134768881 = 5440^2 + 11609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164362481 is a prime.

It is a super-2 number, since 2×164362481² = 54030050320950722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164362411) 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 in 3 ways as a sum of consecutive naturals, for example, 2004380 + ... + 2004461.

It is an arithmetic number, because the mean of its divisors is an integer number (42092841).

Almost surely, 2^164362481 is an apocalyptic number.

It is an amenable number.

164362481 is a deficient number, since it is larger than the sum of its proper divisors (4008883).

164362481 is an equidigital number, since it uses as much as digits as its factorization.

164362481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008882.

The product of its digits is 27648, while the sum is 35.

The square root of 164362481 is about 12820.3931686981. The cubic root of 164362481 is about 547.7733458494.

The spelling of 164362481 in words is "one hundred sixty-four million, three hundred sixty-two thousand, four hundred eighty-one".