1009145501005 has 4 divisors (see below), whose sum is σ = 1210974601212. Its totient is φ = 807316400800.

The previous prime is 1009145500991. The next prime is 1009145501051. The reversal of 1009145501005 is 5001055419001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 520842229636 + 488303271369 = 721694^2 + 698787^2 .

It is not a de Polignac number, because 1009145501005 - 2²⁷ = 1009011283277 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100914550096 + ... + 100914550105.

It is an arithmetic number, because the mean of its divisors is an integer number (302743650303).

Almost surely, 2^{1009145501005} is an apocalyptic number.

It is an amenable number.

1009145501005 is a deficient number, since it is larger than the sum of its proper divisors (201829100207).

1009145501005 is an equidigital number, since it uses as much as digits as its factorization.

1009145501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201829100206.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 1009145501005 in words is "one trillion, nine billion, one hundred forty-five million, five hundred one thousand, five".