1965502213 has 2 divisors, whose sum is σ = 1965502214. Its totient is φ = 1965502212.

The previous prime is 1965502211. The next prime is 1965502229. The reversal of 1965502213 is 3122055691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1790813124 + 174689089 = 42318^2 + 13217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1965502213 - 2¹ = 1965502211 is a prime.

Together with 1965502211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1965502211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982751106 + 982751107.

It is an arithmetic number, because the mean of its divisors is an integer number (982751107).

Almost surely, 2^1965502213 is an apocalyptic number.

It is an amenable number.

1965502213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965502213 is an equidigital number, since it uses as much as digits as its factorization.

1965502213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1965502213 is about 44333.9848536086. The cubic root of 1965502213 is about 1252.6349139867.

The spelling of 1965502213 in words is "one billion, nine hundred sixty-five million, five hundred two thousand, two hundred thirteen".