1299650117 has 2 divisors, whose sum is σ = 1299650118. Its totient is φ = 1299650116.

The previous prime is 1299650081. The next prime is 1299650159. The reversal of 1299650117 is 7110569921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299530401 + 119716 = 36049^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299650117 - 2¹⁶ = 1299584581 is a prime.

It is a super-2 number, since 2×1299650117² = 3378180853236227378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299658117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649825058 + 649825059.

It is an arithmetic number, because the mean of its divisors is an integer number (649825059).

Almost surely, 2^1299650117 is an apocalyptic number.

It is an amenable number.

1299650117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299650117 is an equidigital number, since it uses as much as digits as its factorization.

1299650117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 41.

The square root of 1299650117 is about 36050.6604239090. The cubic root of 1299650117 is about 1091.2949615023.

The spelling of 1299650117 in words is "one billion, two hundred ninety-nine million, six hundred fifty thousand, one hundred seventeen".