52340143 has 4 divisors (see below), whose sum is σ = 52355520. Its totient is φ = 52324768.

The previous prime is 52340081. The next prime is 52340177. The reversal of 52340143 is 34104325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52340143 - 2¹⁷ = 52209071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52340443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (13088880).

Almost surely, 2^52340143 is an apocalyptic number.

52340143 is a deficient number, since it is larger than the sum of its proper divisors (15377).

52340143 is a wasteful number, since it uses less digits than its factorization.

52340143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15376.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 52340143 is about 7234.6487820764. The cubic root of 52340143 is about 374.0631857746.

Adding to 52340143 its reverse (34104325), we get a palindrome (86444468).

The spelling of 52340143 in words is "fifty-two million, three hundred forty thousand, one hundred forty-three".