164430139 has 2 divisors, whose sum is σ = 164430140. Its totient is φ = 164430138.

The previous prime is 164430113. The next prime is 164430143. The reversal of 164430139 is 931034461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164430139 - 2¹⁹ = 163905851 is a prime.

It is a super-3 number, since 3×164430139³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164430139.

It is not a weakly prime, because it can be changed into another prime (164430179) 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, 82215069 + 82215070.

It is an arithmetic number, because the mean of its divisors is an integer number (82215070).

Almost surely, 2^164430139 is an apocalyptic number.

164430139 is a deficient number, since it is larger than the sum of its proper divisors (1).

164430139 is an equidigital number, since it uses as much as digits as its factorization.

164430139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 164430139 is about 12823.0315838338. The cubic root of 164430139 is about 547.8484971546.

The spelling of 164430139 in words is "one hundred sixty-four million, four hundred thirty thousand, one hundred thirty-nine".