67141636 has 27 divisors (see below), whose sum is σ = 125336127. Its totient is φ = 31464960.

The previous prime is 67141631. The next prime is 67141637. The reversal of 67141636 is 63614176.

The square root of 67141636 is 8194.

It is a perfect power (a square), and thus also a powerful number.

67141636 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 18922500 + 48219136 = 4350^2 + 6944^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67141631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 278476 + ... + 278716.

Almost surely, 2^67141636 is an apocalyptic number.

67141636 is the 8194-th square number.

It is an amenable number.

67141636 is a deficient number, since it is larger than the sum of its proper divisors (58194491).

67141636 is a wasteful number, since it uses less digits than its factorization.

67141636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 260 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The cubic root of 67141636 is about 406.4408083233.

The spelling of 67141636 in words is "sixty-seven million, one hundred forty-one thousand, six hundred thirty-six".