52142071 has 2 divisors, whose sum is σ = 52142072. Its totient is φ = 52142070.

The previous prime is 52142047. The next prime is 52142141. The reversal of 52142071 is 17024125.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52142071 - 2⁵ = 52142039 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 (52142171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26071035 + 26071036.

It is an arithmetic number, because the mean of its divisors is an integer number (26071036).

Almost surely, 2^52142071 is an apocalyptic number.

52142071 is a deficient number, since it is larger than the sum of its proper divisors (1).

52142071 is an equidigital number, since it uses as much as digits as its factorization.

52142071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 52142071 is about 7220.9466830880. The cubic root of 52142071 is about 373.5907306758.

Adding to 52142071 its reverse (17024125), we get a palindrome (69166196).

The spelling of 52142071 in words is "fifty-two million, one hundred forty-two thousand, seventy-one".