1001145599 has 2 divisors, whose sum is σ = 1001145600. Its totient is φ = 1001145598.

The previous prime is 1001145583. The next prime is 1001145601. The reversal of 1001145599 is 9955411001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001145599 - 2⁴ = 1001145583 is a prime.

It is a Sophie Germain prime.

Together with 1001145601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001145499) 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, 500572799 + 500572800.

It is an arithmetic number, because the mean of its divisors is an integer number (500572800).

Almost surely, 2^1001145599 is an apocalyptic number.

1001145599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001145599 is an equidigital number, since it uses as much as digits as its factorization.

1001145599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 35.

The square root of 1001145599 is about 31640.8849275743. The cubic root of 1001145599 is about 1000.3817206042.

The spelling of 1001145599 in words is "one billion, one million, one hundred forty-five thousand, five hundred ninety-nine".