67213141 has 2 divisors, whose sum is σ = 67213142. Its totient is φ = 67213140.

The previous prime is 67213109. The next prime is 67213187. The reversal of 67213141 is 14131276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53597041 + 13616100 = 7321^2 + 3690^2 .

It is a cyclic number.

It is not a de Polignac number, because 67213141 - 2⁵ = 67213109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67213541) 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, 33606570 + 33606571.

It is an arithmetic number, because the mean of its divisors is an integer number (33606571).

Almost surely, 2^67213141 is an apocalyptic number.

It is an amenable number.

67213141 is a deficient number, since it is larger than the sum of its proper divisors (1).

67213141 is an equidigital number, since it uses as much as digits as its factorization.

67213141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 67213141 is about 8198.3620925158. The cubic root of 67213141 is about 406.5850419204.

The spelling of 67213141 in words is "sixty-seven million, two hundred thirteen thousand, one hundred forty-one".