164058491 has 2 divisors, whose sum is σ = 164058492. Its totient is φ = 164058490.

The previous prime is 164058487. The next prime is 164058509. The reversal of 164058491 is 194850461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164058491 - 2² = 164058487 is a prime.

It is not a weakly prime, because it can be changed into another prime (164058421) 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 as a sum of consecutive naturals, namely, 82029245 + 82029246.

It is an arithmetic number, because the mean of its divisors is an integer number (82029246).

Almost surely, 2^164058491 is an apocalyptic number.

164058491 is a deficient number, since it is larger than the sum of its proper divisors (1).

164058491 is an equidigital number, since it uses as much as digits as its factorization.

164058491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 164058491 is about 12808.5319611578. The cubic root of 164058491 is about 547.4354334040.

The spelling of 164058491 in words is "one hundred sixty-four million, fifty-eight thousand, four hundred ninety-one".