164211401 has 2 divisors, whose sum is σ = 164211402. Its totient is φ = 164211400.

The previous prime is 164211391. The next prime is 164211409. The reversal of 164211401 is 104112461.

164211401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95570176 + 68641225 = 9776^2 + 8285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164211401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (164211409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82105700 + 82105701.

It is an arithmetic number, because the mean of its divisors is an integer number (82105701).

Almost surely, 2^164211401 is an apocalyptic number.

It is an amenable number.

164211401 is a deficient number, since it is larger than the sum of its proper divisors (1).

164211401 is an equidigital number, since it uses as much as digits as its factorization.

164211401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 164211401 is about 12814.4996390807. The cubic root of 164211401 is about 547.6054588594.

Adding to 164211401 its reverse (104112461), we get a palindrome (268323862).

The spelling of 164211401 in words is "one hundred sixty-four million, two hundred eleven thousand, four hundred one".