52123129 has 4 divisors (see below), whose sum is σ = 54389376. Its totient is φ = 49856884.

The previous prime is 52123111. The next prime is 52123133. The reversal of 52123129 is 92132125.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 52123129 - 2¹¹ = 52121081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52123229) 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, 1133089 + ... + 1133134.

It is an arithmetic number, because the mean of its divisors is an integer number (13597344).

Almost surely, 2^52123129 is an apocalyptic number.

It is an amenable number.

52123129 is a deficient number, since it is larger than the sum of its proper divisors (2266247).

52123129 is a wasteful number, since it uses less digits than its factorization.

52123129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266246.

The product of its digits is 1080, while the sum is 25.

The square root of 52123129 is about 7219.6349630712. The cubic root of 52123129 is about 373.5454862594.

The spelling of 52123129 in words is "fifty-two million, one hundred twenty-three thousand, one hundred twenty-nine".