164070481 has 3 divisors (see below), whose sum is σ = 164083291. Its totient is φ = 164057672.

The previous prime is 164070461. The next prime is 164070497. The reversal of 164070481 is 184070461.

The square root of 164070481 is 12809.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 184070461 = 19 ⋅9687919.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 112360000 = 7191^2 + 10600^2 .

It is not a de Polignac number, because 164070481 - 2⁵ = 164070449 is a prime.

It is a super-2 number, since 2×164070481² = 53838245471142722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164070461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6405 + ... + 19213.

Almost surely, 2^164070481 is an apocalyptic number.

164070481 is the 12809-th square number.

164070481 is the 6405-th centered octagonal number.

It is an amenable number.

164070481 is a deficient number, since it is larger than the sum of its proper divisors (12810).

164070481 is an frugal number, since it uses more digits than its factorization.

164070481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25618 (or 12809 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The cubic root of 164070481 is about 547.4487692798.

The spelling of 164070481 in words is "one hundred sixty-four million, seventy thousand, four hundred eighty-one".