1965136001 has 2 divisors, whose sum is σ = 1965136002. Its totient is φ = 1965136000.

The previous prime is 1965135979. The next prime is 1965136003. The reversal of 1965136001 is 1006315691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1516713025 + 448422976 = 38945^2 + 21176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1965136001 is a prime.

Together with 1965136003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1965136003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982568000 + 982568001.

It is an arithmetic number, because the mean of its divisors is an integer number (982568001).

Almost surely, 2^1965136001 is an apocalyptic number.

It is an amenable number.

1965136001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965136001 is an equidigital number, since it uses as much as digits as its factorization.

1965136001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1965136001 is about 44329.8545113787. The cubic root of 1965136001 is about 1252.5571122545.

The spelling of 1965136001 in words is "one billion, nine hundred sixty-five million, one hundred thirty-six thousand, one".