164541401 has 2 divisors, whose sum is σ = 164541402. Its totient is φ = 164541400.

The previous prime is 164541361. The next prime is 164541409. The reversal of 164541401 is 104145461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127148176 + 37393225 = 11276^2 + 6115^2 .

It is a cyclic number.

It is not a de Polignac number, because 164541401 - 2⁶ = 164541337 is a prime.

It is not a weakly prime, because it can be changed into another prime (164541409) 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, 82270700 + 82270701.

It is an arithmetic number, because the mean of its divisors is an integer number (82270701).

Almost surely, 2^164541401 is an apocalyptic number.

It is an amenable number.

164541401 is a deficient number, since it is larger than the sum of its proper divisors (1).

164541401 is an equidigital number, since it uses as much as digits as its factorization.

164541401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 164541401 is about 12827.3692158603. The cubic root of 164541401 is about 547.9720369076.

Adding to 164541401 its reverse (104145461), we get a palindrome (268686862).

The spelling of 164541401 in words is "one hundred sixty-four million, five hundred forty-one thousand, four hundred one".