1341995749 has 2 divisors, whose sum is σ = 1341995750. Its totient is φ = 1341995748.

The previous prime is 1341995741. The next prime is 1341995761. The reversal of 1341995749 is 9475991431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335390849 + 6604900 = 36543^2 + 2570^2 .

It is an emirp because it is prime and its reverse (9475991431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1341995749 - 2³ = 1341995741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1341995696 and 1341995705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1341995741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670997874 + 670997875.

It is an arithmetic number, because the mean of its divisors is an integer number (670997875).

Almost surely, 2^1341995749 is an apocalyptic number.

It is an amenable number.

1341995749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341995749 is an equidigital number, since it uses as much as digits as its factorization.

1341995749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 52.

The square root of 1341995749 is about 36633.2601470303. The cubic root of 1341995749 is about 1103.0208285391.

The spelling of 1341995749 in words is "one billion, three hundred forty-one million, nine hundred ninety-five thousand, seven hundred forty-nine".