65142001 has 2 divisors, whose sum is σ = 65142002. Its totient is φ = 65142000.

The previous prime is 65141987. The next prime is 65142017. The reversal of 65142001 is 10024156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 14447601 = 7120^2 + 3801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65142001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65142001.

It is not a weakly prime, because it can be changed into another prime (65142101) 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, 32571000 + 32571001.

It is an arithmetic number, because the mean of its divisors is an integer number (32571001).

Almost surely, 2^65142001 is an apocalyptic number.

It is an amenable number.

65142001 is a deficient number, since it is larger than the sum of its proper divisors (1).

65142001 is an equidigital number, since it uses as much as digits as its factorization.

65142001 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 19.

The square root of 65142001 is about 8071.0594719653. The cubic root of 65142001 is about 402.3651562757.

Adding to 65142001 its reverse (10024156), we get a palindrome (75166157).

It can be divided in two parts, 6514 and 2001, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 65142001 in words is "sixty-five million, one hundred forty-two thousand, one".