164430061 has 2 divisors, whose sum is σ = 164430062. Its totient is φ = 164430060.

The previous prime is 164430041. The next prime is 164430067. The reversal of 164430061 is 160034461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125865961 + 38564100 = 11219^2 + 6210^2 .

It is a cyclic number.

It is not a de Polignac number, because 164430061 - 2¹⁷ = 164298989 is a prime.

It is a super-3 number, since 3×164430061³ (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 (164430067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82215030 + 82215031.

It is an arithmetic number, because the mean of its divisors is an integer number (82215031).

Almost surely, 2^164430061 is an apocalyptic number.

It is an amenable number.

164430061 is a deficient number, since it is larger than the sum of its proper divisors (1).

164430061 is an equidigital number, since it uses as much as digits as its factorization.

164430061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 164430061 is about 12823.0285424310. The cubic root of 164430061 is about 547.8484105278.

The spelling of 164430061 in words is "one hundred sixty-four million, four hundred thirty thousand, sixty-one".