6135721154 has 16 divisors (see below), whose sum is σ = 9227996928. Its totient is φ = 3059734512.

The previous prime is 6135721147. The next prime is 6135721169. The reversal of 6135721154 is 4511275316.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1356104 + ... + 1360620.

It is an arithmetic number, because the mean of its divisors is an integer number (576749808).

Almost surely, 2^6135721154 is an apocalyptic number.

6135721154 is a deficient number, since it is larger than the sum of its proper divisors (3092275774).

6135721154 is a wasteful number, since it uses less digits than its factorization.

6135721154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169.

The product of its digits is 25200, while the sum is 35.

The square root of 6135721154 is about 78330.8442058427. The cubic root of 6135721154 is about 1830.7197696191.

The spelling of 6135721154 in words is "six billion, one hundred thirty-five million, seven hundred twenty-one thousand, one hundred fifty-four".