6134555981 has 4 divisors (see below), whose sum is σ = 6135571200. Its totient is φ = 6133540764.

The previous prime is 6134555971. The next prime is 6134556013. The reversal of 6134555981 is 1895554316.

6134555981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6134555981 - 2¹⁰ = 6134554957 is a prime.

It is a super-2 number, since 2×6134555981² = 75265554168045744722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6134555941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498491 + ... + 510648.

It is an arithmetic number, because the mean of its divisors is an integer number (1533892800).

Almost surely, 2^6134555981 is an apocalyptic number.

It is an amenable number.

6134555981 is a deficient number, since it is larger than the sum of its proper divisors (1015219).

6134555981 is a wasteful number, since it uses less digits than its factorization.

6134555981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015218.

The product of its digits is 648000, while the sum is 47.

The square root of 6134555981 is about 78323.4063419103. The cubic root of 6134555981 is about 1830.6038777659.

The spelling of 6134555981 in words is "six billion, one hundred thirty-four million, five hundred fifty-five thousand, nine hundred eighty-one".