5126257129 has 8 divisors (see below), whose sum is σ = 6203202048. Its totient is φ = 4135467840.

The previous prime is 5126257111. The next prime is 5126257139. The reversal of 5126257129 is 9217526215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5126257129 - 2¹³ = 5126248937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5126257091 and 5126257100.

It is not an unprimeable number, because it can be changed into a prime (5126257139) 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 in 7 ways as a sum of consecutive naturals, for example, 21538777 + ... + 21539014.

It is an arithmetic number, because the mean of its divisors is an integer number (775400256).

Almost surely, 2^5126257129 is an apocalyptic number.

It is an amenable number.

5126257129 is a deficient number, since it is larger than the sum of its proper divisors (1076944919).

5126257129 is a wasteful number, since it uses less digits than its factorization.

5126257129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43077815.

The product of its digits is 75600, while the sum is 40.

The square root of 5126257129 is about 71597.8849478111. The cubic root of 5126257129 is about 1724.2495795248.

The spelling of 5126257129 in words is "five billion, one hundred twenty-six million, two hundred fifty-seven thousand, one hundred twenty-nine".