139963141 has 2 divisors, whose sum is σ = 139963142. Its totient is φ = 139963140.

The previous prime is 139963127. The next prime is 139963147. The reversal of 139963141 is 141369931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81974916 + 57988225 = 9054^2 + 7615^2 .

It is an emirp because it is prime and its reverse (141369931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139963141 - 2⁹ = 139962629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139963141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139963147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69981570 + 69981571.

It is an arithmetic number, because the mean of its divisors is an integer number (69981571).

Almost surely, 2^139963141 is an apocalyptic number.

It is an amenable number.

139963141 is a deficient number, since it is larger than the sum of its proper divisors (1).

139963141 is an equidigital number, since it uses as much as digits as its factorization.

139963141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 37.

The square root of 139963141 is about 11830.6018866328. The cubic root of 139963141 is about 519.2038371044.

The spelling of 139963141 in words is "one hundred thirty-nine million, nine hundred sixty-three thousand, one hundred forty-one".