6000147821 has 4 divisors (see below), whose sum is σ = 6207049500. Its totient is φ = 5793246144.

The previous prime is 6000147817. The next prime is 6000147823. The reversal of 6000147821 is 1287410006.

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 1333345225 + 4666802596 = 36515^2 + 68314^2 .

It is a cyclic number.

It is not a de Polignac number, because 6000147821 - 2² = 6000147817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 206901649 = 6000147821 / (6 + 0 + 0 + 0 + 1 + 4 + 7 + 8 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6000147823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103450796 + ... + 103450853.

It is an arithmetic number, because the mean of its divisors is an integer number (1551762375).

Almost surely, 2^6000147821 is an apocalyptic number.

It is an amenable number.

6000147821 is a deficient number, since it is larger than the sum of its proper divisors (206901679).

6000147821 is a wasteful number, since it uses less digits than its factorization.

6000147821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206901678.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 6000147821 is about 77460.6210987234. The cubic root of 6000147821 is about 1817.1355154087.

Adding to 6000147821 its reverse (1287410006), we get a palindrome (7287557827).

The spelling of 6000147821 in words is "six billion, one hundred forty-seven thousand, eight hundred twenty-one".