1965902441 has 2 divisors, whose sum is σ = 1965902442. Its totient is φ = 1965902440.

The previous prime is 1965902377. The next prime is 1965902443. The reversal of 1965902441 is 1442095691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1288810000 + 677092441 = 35900^2 + 26021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1965902441 - 2⁶ = 1965902377 is a prime.

It is a Sophie Germain prime.

Together with 1965902443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1965902443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982951220 + 982951221.

It is an arithmetic number, because the mean of its divisors is an integer number (982951221).

Almost surely, 2^1965902441 is an apocalyptic number.

It is an amenable number.

1965902441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965902441 is an equidigital number, since it uses as much as digits as its factorization.

1965902441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1965902441 is about 44338.4984071405. The cubic root of 1965902441 is about 1252.7199313660.

The spelling of 1965902441 in words is "one billion, nine hundred sixty-five million, nine hundred two thousand, four hundred forty-one".