65451361 has 2 divisors, whose sum is σ = 65451362. Its totient is φ = 65451360.

The previous prime is 65451359. The next prime is 65451367. The reversal of 65451361 is 16315456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 32273761 = 5760^2 + 5681^2 .

It is a cyclic number.

It is not a de Polignac number, because 65451361 - 2¹ = 65451359 is a prime.

Together with 65451359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65451367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32725680 + 32725681.

It is an arithmetic number, because the mean of its divisors is an integer number (32725681).

Almost surely, 2^65451361 is an apocalyptic number.

It is an amenable number.

65451361 is a deficient number, since it is larger than the sum of its proper divisors (1).

65451361 is an equidigital number, since it uses as much as digits as its factorization.

65451361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 65451361 is about 8090.2015426070. The cubic root of 65451361 is about 403.0010959954.

The spelling of 65451361 in words is "sixty-five million, four hundred fifty-one thousand, three hundred sixty-one".