1001000159 has 2 divisors, whose sum is σ = 1001000160. Its totient is φ = 1001000158.

The previous prime is 1001000141. The next prime is 1001000173. The reversal of 1001000159 is 9510001001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001000159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001000359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500500079 + 500500080.

It is an arithmetic number, because the mean of its divisors is an integer number (500500080).

Almost surely, 2^1001000159 is an apocalyptic number.

1001000159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001000159 is an equidigital number, since it uses as much as digits as its factorization.

1001000159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1001000159 is about 31638.5865518673. The cubic root of 1001000159 is about 1000.3332752486. Note that the first 3 decimals are identical.

The spelling of 1001000159 in words is "one billion, one million, one hundred fifty-nine", and thus it is an aban number.