1330368749 has 2 divisors, whose sum is σ = 1330368750. Its totient is φ = 1330368748.

The previous prime is 1330368727. The next prime is 1330368763. The reversal of 1330368749 is 9478630331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 941569225 + 388799524 = 30685^2 + 19718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330368749 - 2¹² = 1330364653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330368709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665184374 + 665184375.

It is an arithmetic number, because the mean of its divisors is an integer number (665184375).

Almost surely, 2^1330368749 is an apocalyptic number.

It is an amenable number.

1330368749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330368749 is an equidigital number, since it uses as much as digits as its factorization.

1330368749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1330368749 is about 36474.2203343677. The cubic root of 1330368749 is about 1099.8260741542.

The spelling of 1330368749 in words is "one billion, three hundred thirty million, three hundred sixty-eight thousand, seven hundred forty-nine".