65142289 has 2 divisors, whose sum is σ = 65142290. Its totient is φ = 65142288.

The previous prime is 65142277. The next prime is 65142293. The reversal of 65142289 is 98224156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 25553025 = 6292^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 65142289 - 2⁵ = 65142257 is a prime.

It is not a weakly prime, because it can be changed into another prime (65142229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32571144 + 32571145.

It is an arithmetic number, because the mean of its divisors is an integer number (32571145).

Almost surely, 2^65142289 is an apocalyptic number.

It is an amenable number.

65142289 is a deficient number, since it is larger than the sum of its proper divisors (1).

65142289 is an equidigital number, since it uses as much as digits as its factorization.

65142289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 65142289 is about 8071.0773134694. The cubic root of 65142289 is about 402.3657492418.

It can be divided in two parts, 651422 and 89, that added together give a triangular number (651511 = T₁₁₄₁).

The spelling of 65142289 in words is "sixty-five million, one hundred forty-two thousand, two hundred eighty-nine".