1967669141 has 2 divisors, whose sum is σ = 1967669142. Its totient is φ = 1967669140.

The previous prime is 1967669087. The next prime is 1967669167. The reversal of 1967669141 is 1419667691.

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., 1829700625 + 137968516 = 42775^2 + 11746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1967669141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1967669141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1967669191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983834570 + 983834571.

It is an arithmetic number, because the mean of its divisors is an integer number (983834571).

Almost surely, 2^1967669141 is an apocalyptic number.

It is an amenable number.

1967669141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1967669141 is an equidigital number, since it uses as much as digits as its factorization.

1967669141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 1967669141 is about 44358.4167999716. The cubic root of 1967669141 is about 1253.0950801379.

The spelling of 1967669141 in words is "one billion, nine hundred sixty-seven million, six hundred sixty-nine thousand, one hundred forty-one".