65213293 has 2 divisors, whose sum is σ = 65213294. Its totient is φ = 65213292.

The previous prime is 65213273. The next prime is 65213297. The reversal of 65213293 is 39231256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62694724 + 2518569 = 7918^2 + 1587^2 .

It is a cyclic number.

It is not a de Polignac number, because 65213293 - 2⁹ = 65212781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65213297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32606646 + 32606647.

It is an arithmetic number, because the mean of its divisors is an integer number (32606647).

Almost surely, 2^65213293 is an apocalyptic number.

It is an amenable number.

65213293 is a deficient number, since it is larger than the sum of its proper divisors (1).

65213293 is an equidigital number, since it uses as much as digits as its factorization.

65213293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 65213293 is about 8075.4747848037. The cubic root of 65213293 is about 402.5118867932.

The spelling of 65213293 in words is "sixty-five million, two hundred thirteen thousand, two hundred ninety-three".