1965065129 has 2 divisors, whose sum is σ = 1965065130. Its totient is φ = 1965065128.

The previous prime is 1965065111. The next prime is 1965065147. The reversal of 1965065129 is 9215605691.

It is a balanced prime because it is at equal distance from previous prime (1965065111) and next prime (1965065147).

It can be written as a sum of positive squares in only one way, i.e., 1115226025 + 849839104 = 33395^2 + 29152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1965065129 - 2²⁰ = 1964016553 is a prime.

It is a super-2 number, since 2×1965065129² = 7722961922423573282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1965065129.

It is not a weakly prime, because it can be changed into another prime (1965065029) 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, 982532564 + 982532565.

It is an arithmetic number, because the mean of its divisors is an integer number (982532565).

Almost surely, 2^1965065129 is an apocalyptic number.

It is an amenable number.

1965065129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965065129 is an equidigital number, since it uses as much as digits as its factorization.

1965065129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 1965065129 is about 44329.0551331742. The cubic root of 1965065129 is about 1252.5420543832.

The spelling of 1965065129 in words is "one billion, nine hundred sixty-five million, sixty-five thousand, one hundred twenty-nine".