6135721146 has 24 divisors (see below), whose sum is σ = 13395549024. Its totient is φ = 2029627080.

The previous prime is 6135721099. The next prime is 6135721147. The reversal of 6135721146 is 6411275316.

6135721146 is a `hidden beast` number, since 613 + 5 + 7 + 21 + 14 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6135721146.

It is not an unprimeable number, because it can be changed into a prime (6135721147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1298686 + ... + 1303401.

It is an arithmetic number, because the mean of its divisors is an integer number (558147876).

Almost surely, 2^6135721146 is an apocalyptic number.

6135721146 is an abundant number, since it is smaller than the sum of its proper divisors (7259827878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6135721146 is a wasteful number, since it uses less digits than its factorization.

6135721146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602226 (or 2602223 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 6135721146 is about 78330.8441547772. The cubic root of 6135721146 is about 1830.7197688234.

The spelling of 6135721146 in words is "six billion, one hundred thirty-five million, seven hundred twenty-one thousand, one hundred forty-six".