67144201 has 2 divisors, whose sum is σ = 67144202. Its totient is φ = 67144200.

The previous prime is 67144177. The next prime is 67144219. The reversal of 67144201 is 10244176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61214976 + 5929225 = 7824^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 67144201 - 2⁷ = 67144073 is a prime.

It is not a weakly prime, because it can be changed into another prime (67144001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33572100 + 33572101.

It is an arithmetic number, because the mean of its divisors is an integer number (33572101).

Almost surely, 2^67144201 is an apocalyptic number.

It is an amenable number.

67144201 is a deficient number, since it is larger than the sum of its proper divisors (1).

67144201 is an equidigital number, since it uses as much as digits as its factorization.

67144201 is an evil number, because the sum of its binary digits is even.

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

The square root of 67144201 is about 8194.1565154688. The cubic root of 67144201 is about 406.4459839861.

Subtracting from 67144201 its sum of digits (25), we obtain a palindrome (67144176).

Adding to 67144201 its reverse (10244176), we get a palindrome (77388377).

The spelling of 67144201 in words is "sixty-seven million, one hundred forty-four thousand, two hundred one".