6121504156 has 24 divisors (see below), whose sum is σ = 11062429056. Its totient is φ = 2960885760.

The previous prime is 6121504153. The next prime is 6121504157. The reversal of 6121504156 is 6514051216.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121504153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381120 + ... + 396856.

It is an arithmetic number, because the mean of its divisors is an integer number (460934544).

Almost surely, 2^6121504156 is an apocalyptic number.

It is an amenable number.

6121504156 is a deficient number, since it is larger than the sum of its proper divisors (4940924900).

6121504156 is a wasteful number, since it uses less digits than its factorization.

6121504156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18909 (or 18907 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 6121504156 is about 78240.0418967168. The cubic root of 6121504156 is about 1829.3046972855.

The spelling of 6121504156 in words is "six billion, one hundred twenty-one million, five hundred four thousand, one hundred fifty-six".