2065534397 has 2 divisors, whose sum is σ = 2065534398. Its totient is φ = 2065534396.

The previous prime is 2065534379. The next prime is 2065534423. The reversal of 2065534397 is 7934355602.

Together with previous prime (2065534379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1993979716 + 71554681 = 44654^2 + 8459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065534397 - 2¹⁰ = 2065533373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2065534307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032767198 + 1032767199.

It is an arithmetic number, because the mean of its divisors is an integer number (1032767199).

Almost surely, 2^2065534397 is an apocalyptic number.

It is an amenable number.

2065534397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065534397 is an equidigital number, since it uses as much as digits as its factorization.

2065534397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 44.

The square root of 2065534397 is about 45448.1506444432. The cubic root of 2065534397 is about 1273.5347816764.

Adding to 2065534397 its reverse (7934355602), we get a palindrome (9999889999).

The spelling of 2065534397 in words is "two billion, sixty-five million, five hundred thirty-four thousand, three hundred ninety-seven".