51130129 has 4 divisors (see below), whose sum is σ = 52779520. Its totient is φ = 49480740.

The previous prime is 51130091. The next prime is 51130133. The reversal of 51130129 is 92103115.

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 51130129 - 2¹¹ = 51128081 is a prime.

It is a super-2 number, since 2×51130129² = 5228580183113282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51130199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824649 + ... + 824710.

It is an arithmetic number, because the mean of its divisors is an integer number (13194880).

Almost surely, 2^51130129 is an apocalyptic number.

It is an amenable number.

51130129 is a deficient number, since it is larger than the sum of its proper divisors (1649391).

51130129 is a wasteful number, since it uses less digits than its factorization.

51130129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649390.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 51130129 is about 7150.5334766016. The cubic root of 51130129 is about 371.1581170580.

The spelling of 51130129 in words is "fifty-one million, one hundred thirty thousand, one hundred twenty-nine".