52127129 has 4 divisors (see below), whose sum is σ = 52141584. Its totient is φ = 52112676.

The previous prime is 52127111. The next prime is 52127171. The reversal of 52127129 is 92172125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52127129 - 2¹² = 52123033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52127189) 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, 3134 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (13035396).

Almost surely, 2^52127129 is an apocalyptic number.

It is an amenable number.

52127129 is a deficient number, since it is larger than the sum of its proper divisors (14455).

52127129 is an equidigital number, since it uses as much as digits as its factorization.

52127129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14454.

The product of its digits is 2520, while the sum is 29.

The square root of 52127129 is about 7219.9119800729. The cubic root of 52127129 is about 373.5550414783. Note that the first 3 decimals are identical.

The spelling of 52127129 in words is "fifty-two million, one hundred twenty-seven thousand, one hundred twenty-nine".