164003401 has 2 divisors, whose sum is σ = 164003402. Its totient is φ = 164003400.

The previous prime is 164003387. The next prime is 164003407. The reversal of 164003401 is 104300461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156275001 + 7728400 = 12501^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 164003401 - 2¹⁵ = 163970633 is a prime.

It is not a weakly prime, because it can be changed into another prime (164003407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82001700 + 82001701.

It is an arithmetic number, because the mean of its divisors is an integer number (82001701).

Almost surely, 2^164003401 is an apocalyptic number.

It is an amenable number.

164003401 is a deficient number, since it is larger than the sum of its proper divisors (1).

164003401 is an equidigital number, since it uses as much as digits as its factorization.

164003401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 164003401 is about 12806.3812609183. The cubic root of 164003401 is about 547.3741512070.

Adding to 164003401 its reverse (104300461), we get a palindrome (268303862).

The spelling of 164003401 in words is "one hundred sixty-four million, three thousand, four hundred one".