1351285352749 has 2 divisors, whose sum is σ = 1351285352750. Its totient is φ = 1351285352748.

The previous prime is 1351285352693. The next prime is 1351285352783. The reversal of 1351285352749 is 9472535821531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002087087849 + 349198264900 = 1001043^2 + 590930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351285352749 - 2⁷ = 1351285352621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351285352749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351285350749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675642676374 + 675642676375.

It is an arithmetic number, because the mean of its divisors is an integer number (675642676375).

Almost surely, 2^{1351285352749} is an apocalyptic number.

It is an amenable number.

1351285352749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351285352749 is an equidigital number, since it uses as much as digits as its factorization.

1351285352749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072000, while the sum is 55.

The spelling of 1351285352749 in words is "one trillion, three hundred fifty-one billion, two hundred eighty-five million, three hundred fifty-two thousand, seven hundred forty-nine".