51104129 has 4 divisors (see below), whose sum is σ = 53793840. Its totient is φ = 48414420.

The previous prime is 51104117. The next prime is 51104143. The reversal of 51104129 is 92140115.

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 51104129 - 2⁸ = 51103873 is a prime.

It is a super-2 number, since 2×51104129² = 5223264001697282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51104149) 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, 1344827 + ... + 1344864.

It is an arithmetic number, because the mean of its divisors is an integer number (13448460).

Almost surely, 2^51104129 is an apocalyptic number.

It is an amenable number.

51104129 is a deficient number, since it is larger than the sum of its proper divisors (2689711).

51104129 is a wasteful number, since it uses less digits than its factorization.

51104129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689710.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 51104129 is about 7148.7151992508. The cubic root of 51104129 is about 371.0951942933.

The spelling of 51104129 in words is "fifty-one million, one hundred four thousand, one hundred twenty-nine".