65107919 has 2 divisors, whose sum is σ = 65107920. Its totient is φ = 65107918.

The previous prime is 65107907. The next prime is 65107921. The reversal of 65107919 is 91970156.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65107919 is a prime.

It is a super-2 number, since 2×65107919² = 8478082233021122, which contains 22 as substring.

Together with 65107921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65107949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32553959 + 32553960.

It is an arithmetic number, because the mean of its divisors is an integer number (32553960).

Almost surely, 2^65107919 is an apocalyptic number.

65107919 is a deficient number, since it is larger than the sum of its proper divisors (1).

65107919 is an equidigital number, since it uses as much as digits as its factorization.

65107919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 65107919 is about 8068.9478248406. The cubic root of 65107919 is about 402.2949721583.

The spelling of 65107919 in words is "sixty-five million, one hundred seven thousand, nine hundred nineteen".