1650133399 has 2 divisors, whose sum is σ = 1650133400. Its totient is φ = 1650133398.

The previous prime is 1650133393. The next prime is 1650133403. The reversal of 1650133399 is 9933310561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1650133399 - 2¹³ = 1650125207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1650133393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825066699 + 825066700.

It is an arithmetic number, because the mean of its divisors is an integer number (825066700).

Almost surely, 2^1650133399 is an apocalyptic number.

1650133399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650133399 is an equidigital number, since it uses as much as digits as its factorization.

1650133399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 40.

The square root of 1650133399 is about 40621.8340181730. The cubic root of 1650133399 is about 1181.6975946658.

The spelling of 1650133399 in words is "one billion, six hundred fifty million, one hundred thirty-three thousand, three hundred ninety-nine".