1006150721 has 2 divisors, whose sum is σ = 1006150722. Its totient is φ = 1006150720.

The previous prime is 1006150703. The next prime is 1006150723. The reversal of 1006150721 is 1270516001.

1006150721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898800400 + 107350321 = 29980^2 + 10361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006150721 is a prime.

Together with 1006150723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1006150723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503075360 + 503075361.

It is an arithmetic number, because the mean of its divisors is an integer number (503075361).

Almost surely, 2^1006150721 is an apocalyptic number.

It is an amenable number.

1006150721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006150721 is an equidigital number, since it uses as much as digits as its factorization.

1006150721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1006150721 is about 31719.8789562634. The cubic root of 1006150721 is about 1002.0460511529.

Adding to 1006150721 its reverse (1270516001), we get a palindrome (2276666722).

The spelling of 1006150721 in words is "one billion, six million, one hundred fifty thousand, seven hundred twenty-one".