1965623083 has 2 divisors, whose sum is σ = 1965623084. Its totient is φ = 1965623082.

The previous prime is 1965623029. The next prime is 1965623089. The reversal of 1965623083 is 3803265691.

It is a strong prime.

It is an emirp because it is prime and its reverse (3803265691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1965623083 - 2²⁵ = 1932068651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1965623089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982811541 + 982811542.

It is an arithmetic number, because the mean of its divisors is an integer number (982811542).

Almost surely, 2^1965623083 is an apocalyptic number.

1965623083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965623083 is an equidigital number, since it uses as much as digits as its factorization.

1965623083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 1965623083 is about 44335.3480081075. The cubic root of 1965623083 is about 1252.6605906945.

The spelling of 1965623083 in words is "one billion, nine hundred sixty-five million, six hundred twenty-three thousand, eighty-three".