999999145001 has 4 divisors (see below), whose sum is σ = 1000011465552. Its totient is φ = 999986824452.

The previous prime is 999999144997. The next prime is 999999145021. The reversal of 999999145001 is 100541999999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999999145001 - 2² = 999999144997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999999145021) 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, 6037715 + ... + 6201128.

It is an arithmetic number, because the mean of its divisors is an integer number (250002866388).

Almost surely, 2^999999145001 is an apocalyptic number.

It is an amenable number.

999999145001 is a deficient number, since it is larger than the sum of its proper divisors (12320551).

999999145001 is a wasteful number, since it uses less digits than its factorization.

999999145001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320550.

The product of its (nonzero) digits is 10628820, while the sum is 65.

The spelling of 999999145001 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, one hundred forty-five thousand, one".