65134243 has 2 divisors, whose sum is σ = 65134244. Its totient is φ = 65134242.

The previous prime is 65134231. The next prime is 65134253. The reversal of 65134243 is 34243156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65134243 - 2¹⁷ = 65003171 is a prime.

It is a super-2 number, since 2×65134243² = 8484939222366098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65134253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32567121 + 32567122.

It is an arithmetic number, because the mean of its divisors is an integer number (32567122).

Almost surely, 2^65134243 is an apocalyptic number.

65134243 is a deficient number, since it is larger than the sum of its proper divisors (1).

65134243 is an equidigital number, since it uses as much as digits as its factorization.

65134243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 65134243 is about 8070.5788516066. The cubic root of 65134243 is about 402.3491825938.

Adding to 65134243 its reverse (34243156), we get a palindrome (99377399).

The spelling of 65134243 in words is "sixty-five million, one hundred thirty-four thousand, two hundred forty-three".