1341143249 has 2 divisors, whose sum is σ = 1341143250. Its totient is φ = 1341143248.

The previous prime is 1341143239. The next prime is 1341143269. The reversal of 1341143249 is 9423411431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686806849 + 654336400 = 26207^2 + 25580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341143249 - 2⁴ = 1341143233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1341143239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670571624 + 670571625.

It is an arithmetic number, because the mean of its divisors is an integer number (670571625).

Almost surely, 2^1341143249 is an apocalyptic number.

It is an amenable number.

1341143249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341143249 is an equidigital number, since it uses as much as digits as its factorization.

1341143249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 1341143249 is about 36621.6226975267. The cubic root of 1341143249 is about 1102.7872151712.

The spelling of 1341143249 in words is "one billion, three hundred forty-one million, one hundred forty-three thousand, two hundred forty-nine".