1659300749 has 2 divisors, whose sum is σ = 1659300750. Its totient is φ = 1659300748.

The previous prime is 1659300697. The next prime is 1659300767. The reversal of 1659300749 is 9470039561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220104900 + 439195849 = 34930^2 + 20957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1659300749 - 2¹⁶ = 1659235213 is a prime.

It is a super-2 number, since 2×1659300749² = 5506557951263922002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1659300649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829650374 + 829650375.

It is an arithmetic number, because the mean of its divisors is an integer number (829650375).

Almost surely, 2^1659300749 is an apocalyptic number.

It is an amenable number.

1659300749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659300749 is an equidigital number, since it uses as much as digits as its factorization.

1659300749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1659300749 is about 40734.5154506593. The cubic root of 1659300749 is about 1183.8818698056.

The spelling of 1659300749 in words is "one billion, six hundred fifty-nine million, three hundred thousand, seven hundred forty-nine".