164270401 has 2 divisors, whose sum is σ = 164270402. Its totient is φ = 164270400.

The previous prime is 164270389. The next prime is 164270429. The reversal of 164270401 is 104072461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 1962801 = 12740^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 164270401 - 2⁵ = 164270369 is a prime.

It is not a weakly prime, because it can be changed into another prime (164270441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82135200 + 82135201.

It is an arithmetic number, because the mean of its divisors is an integer number (82135201).

Almost surely, 2^164270401 is an apocalyptic number.

It is an amenable number.

164270401 is a deficient number, since it is larger than the sum of its proper divisors (1).

164270401 is an equidigital number, since it uses as much as digits as its factorization.

164270401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 164270401 is about 12816.8015120778. The cubic root of 164270401 is about 547.6710346014.

The spelling of 164270401 in words is "one hundred sixty-four million, two hundred seventy thousand, four hundred one".