65142101 has 2 divisors, whose sum is σ = 65142102. Its totient is φ = 65142100.

The previous prime is 65142097. The next prime is 65142131. The reversal of 65142101 is 10124156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35700625 + 29441476 = 5975^2 + 5426^2 .

It is a cyclic number.

It is not a de Polignac number, because 65142101 - 2² = 65142097 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32571050 + 32571051.

It is an arithmetic number, because the mean of its divisors is an integer number (32571051).

Almost surely, 2^65142101 is an apocalyptic number.

It is an amenable number.

65142101 is a deficient number, since it is larger than the sum of its proper divisors (1).

65142101 is an equidigital number, since it uses as much as digits as its factorization.

65142101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 65142101 is about 8071.0656669364. The cubic root of 65142101 is about 402.3653621669.

Adding to 65142101 its reverse (10124156), we get a palindrome (75266257).

The spelling of 65142101 in words is "sixty-five million, one hundred forty-two thousand, one hundred one".