141438961 has 2 divisors, whose sum is σ = 141438962. Its totient is φ = 141438960.

The previous prime is 141438919. The next prime is 141438967. The reversal of 141438961 is 169834141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140564736 + 874225 = 11856^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 141438961 - 2¹⁹ = 140914673 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 141438961.

It is not a weakly prime, because it can be changed into another prime (141438967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70719480 + 70719481.

It is an arithmetic number, because the mean of its divisors is an integer number (70719481).

Almost surely, 2^141438961 is an apocalyptic number.

It is an amenable number.

141438961 is a deficient number, since it is larger than the sum of its proper divisors (1).

141438961 is an equidigital number, since it uses as much as digits as its factorization.

141438961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 141438961 is about 11892.8113160850. The cubic root of 141438961 is about 521.0223488951.

It can be divided in two parts, 14143 and 8961, that added together give a square (23104 = 152²).

The spelling of 141438961 in words is "one hundred forty-one million, four hundred thirty-eight thousand, nine hundred sixty-one".