1995829169 has 2 divisors, whose sum is σ = 1995829170. Its totient is φ = 1995829168.

The previous prime is 1995829159. The next prime is 1995829181. The reversal of 1995829169 is 9619285991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1690278769 + 305550400 = 41113^2 + 17480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1995829169 - 2⁴ = 1995829153 is a prime.

It is a super-2 number, since 2×1995829169² = 7966668143662461122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1995829159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997914584 + 997914585.

It is an arithmetic number, because the mean of its divisors is an integer number (997914585).

Almost surely, 2^1995829169 is an apocalyptic number.

It is an amenable number.

1995829169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995829169 is an equidigital number, since it uses as much as digits as its factorization.

1995829169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 59.

The square root of 1995829169 is about 44674.7039050065. The cubic root of 1995829169 is about 1259.0446207439.

The spelling of 1995829169 in words is "one billion, nine hundred ninety-five million, eight hundred twenty-nine thousand, one hundred sixty-nine".