6151140421 has 4 divisors (see below), whose sum is σ = 6151797612. Its totient is φ = 6150483232.

The previous prime is 6151140397. The next prime is 6151140461. The reversal of 6151140421 is 1240411516.

6151140421 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3233628225 + 2917512196 = 56865^2 + 54014^2 .

It is a cyclic number.

It is not a de Polignac number, because 6151140421 - 2⁹ = 6151139909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6151140461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314350 + ... + 333343.

It is an arithmetic number, because the mean of its divisors is an integer number (1537949403).

Almost surely, 2^6151140421 is an apocalyptic number.

It is an amenable number.

6151140421 is a deficient number, since it is larger than the sum of its proper divisors (657191).

6151140421 is an equidigital number, since it uses as much as digits as its factorization.

6151140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657190.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 6151140421 is about 78429.2064284728. The cubic root of 6151140421 is about 1832.2520395794.

Adding to 6151140421 its reverse (1240411516), we get a palindrome (7391551937).

The spelling of 6151140421 in words is "six billion, one hundred fifty-one million, one hundred forty thousand, four hundred twenty-one".