65281351 has 2 divisors, whose sum is σ = 65281352. Its totient is φ = 65281350.

The previous prime is 65281339. The next prime is 65281369. The reversal of 65281351 is 15318256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65281351 - 2²³ = 56892743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65281331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640675 + 32640676.

It is an arithmetic number, because the mean of its divisors is an integer number (32640676).

Almost surely, 2^65281351 is an apocalyptic number.

65281351 is a deficient number, since it is larger than the sum of its proper divisors (1).

65281351 is an equidigital number, since it uses as much as digits as its factorization.

65281351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The square root of 65281351 is about 8079.6875558403. The cubic root of 65281351 is about 402.6518614750.

It can be divided in two parts, 652813 and 51, that added together give a square (652864 = 808²).

The spelling of 65281351 in words is "sixty-five million, two hundred eighty-one thousand, three hundred fifty-one".