65161487 has 2 divisors, whose sum is σ = 65161488. Its totient is φ = 65161486.

The previous prime is 65161451. The next prime is 65161489. The reversal of 65161487 is 78416156.

65161487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65161487 - 2²⁰ = 64112911 is a prime.

Together with 65161489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65161487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65161489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32580743 + 32580744.

It is an arithmetic number, because the mean of its divisors is an integer number (32580744).

Almost surely, 2^65161487 is an apocalyptic number.

65161487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65161487 is an equidigital number, since it uses as much as digits as its factorization.

65161487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 65161487 is about 8072.2665342517. The cubic root of 65161487 is about 402.4052722565.

The spelling of 65161487 in words is "sixty-five million, one hundred sixty-one thousand, four hundred eighty-seven".