1341441989 has 2 divisors, whose sum is σ = 1341441990. Its totient is φ = 1341441988.

The previous prime is 1341441973. The next prime is 1341441991. The reversal of 1341441989 is 9891441431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084384900 + 257057089 = 32930^2 + 16033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341441989 - 2⁴ = 1341441973 is a prime.

It is a super-2 number, since 2×1341441989² = 3598933219704552242, which contains 22 as substring.

Together with 1341441991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1341443989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670720994 + 670720995.

It is an arithmetic number, because the mean of its divisors is an integer number (670720995).

Almost surely, 2^1341441989 is an apocalyptic number.

It is an amenable number.

1341441989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341441989 is an equidigital number, since it uses as much as digits as its factorization.

1341441989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 1341441989 is about 36625.7012083045. The cubic root of 1341441989 is about 1102.8690911365.

The spelling of 1341441989 in words is "one billion, three hundred forty-one million, four hundred forty-one thousand, nine hundred eighty-nine".