6109141921 has 9 divisors (see below), whose sum is σ = 6245644881. Its totient is φ = 5975564772.

The previous prime is 6109141919. The next prime is 6109142003. The reversal of 6109141921 is 1291419016.

The square root of 6109141921 is 78161.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 6109141921 - 2¹ = 6109141919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6109141321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3672736 + ... + 3674398.

Almost surely, 2^6109141921 is an apocalyptic number.

6109141921 is the 78161-st square number.

6109141921 is the 39081-st centered octagonal number.

It is an amenable number.

6109141921 is a deficient number, since it is larger than the sum of its proper divisors (136502960).

6109141921 is an frugal number, since it uses more digits than its factorization.

6109141921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The cubic root of 6109141921 is about 1828.0724546812.

The spelling of 6109141921 in words is "six billion, one hundred nine million, one hundred forty-one thousand, nine hundred twenty-one".