1005161147 has 2 divisors, whose sum is σ = 1005161148. Its totient is φ = 1005161146.

The previous prime is 1005161137. The next prime is 1005161189. The reversal of 1005161147 is 7411615001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005161147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005161117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502580573 + 502580574.

It is an arithmetic number, because the mean of its divisors is an integer number (502580574).

Almost surely, 2^1005161147 is an apocalyptic number.

1005161147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005161147 is an equidigital number, since it uses as much as digits as its factorization.

1005161147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1005161147 is about 31704.2764781031. The cubic root of 1005161147 is about 1001.7174310753.

Adding to 1005161147 its reverse (7411615001), we get a palindrome (8416776148).

The spelling of 1005161147 in words is "one billion, five million, one hundred sixty-one thousand, one hundred forty-seven".