1650808097 has 2 divisors, whose sum is σ = 1650808098. Its totient is φ = 1650808096.

The previous prime is 1650808079. The next prime is 1650808127. The reversal of 1650808097 is 7908080561.

It is a happy number.

Together with previous prime (1650808079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144062976 + 506745121 = 33824^2 + 22511^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650808097 - 2¹⁴ = 1650791713 is a prime.

It is a super-2 number, since 2×1650808097² = 5450334746241522818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1650808037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825404048 + 825404049.

It is an arithmetic number, because the mean of its divisors is an integer number (825404049).

Almost surely, 2^1650808097 is an apocalyptic number.

It is an amenable number.

1650808097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650808097 is an equidigital number, since it uses as much as digits as its factorization.

1650808097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 1650808097 is about 40630.1377920381. The cubic root of 1650808097 is about 1181.8586281849.

The spelling of 1650808097 in words is "one billion, six hundred fifty million, eight hundred eight thousand, ninety-seven".