5121561134 has 16 divisors (see below), whose sum is σ = 8136450000. Its totient is φ = 2409492864.

The previous prime is 5121561121. The next prime is 5121561149. The reversal of 5121561134 is 4311651215.

It is a junction number, because it is equal to n+sod(n) for n = 5121561097 and 5121561106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120992 + ... + 157740.

It is an arithmetic number, because the mean of its divisors is an integer number (508528125).

Almost surely, 2^5121561134 is an apocalyptic number.

5121561134 is a deficient number, since it is larger than the sum of its proper divisors (3014888866).

5121561134 is a wasteful number, since it uses less digits than its factorization.

5121561134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40867.

The product of its digits is 3600, while the sum is 29.

The square root of 5121561134 is about 71565.0832040318. The cubic root of 5121561134 is about 1723.7229092892.

The spelling of 5121561134 in words is "five billion, one hundred twenty-one million, five hundred sixty-one thousand, one hundred thirty-four".