65481313 has 2 divisors, whose sum is σ = 65481314. Its totient is φ = 65481312.

The previous prime is 65481307. The next prime is 65481319. The reversal of 65481313 is 31318456.

It is a balanced prime because it is at equal distance from previous prime (65481307) and next prime (65481319).

It can be written as a sum of positive squares in only one way, i.e., 35319249 + 30162064 = 5943^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 65481313 - 2⁵ = 65481281 is a prime.

It is not a weakly prime, because it can be changed into another prime (65481319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32740656 + 32740657.

It is an arithmetic number, because the mean of its divisors is an integer number (32740657).

Almost surely, 2^65481313 is an apocalyptic number.

It is an amenable number.

65481313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65481313 is an equidigital number, since it uses as much as digits as its factorization.

65481313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 65481313 is about 8092.0524590489. The cubic root of 65481313 is about 403.0625607118.

Adding to 65481313 its reverse (31318456), we get a palindrome (96799769).

The spelling of 65481313 in words is "sixty-five million, four hundred eighty-one thousand, three hundred thirteen".