1005145231315 has 4 divisors (see below), whose sum is σ = 1206174277584. Its totient is φ = 804116185048.

The previous prime is 1005145231313. The next prime is 1005145231379. The reversal of 1005145231315 is 5131325415001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005145231315 - 2¹ = 1005145231313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005145231313) 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, 100514523127 + ... + 100514523136.

It is an arithmetic number, because the mean of its divisors is an integer number (301543569396).

Almost surely, 2^{1005145231315} is an apocalyptic number.

1005145231315 is a deficient number, since it is larger than the sum of its proper divisors (201029046269).

1005145231315 is an equidigital number, since it uses as much as digits as its factorization.

1005145231315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201029046268.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 1005145231315 in words is "one trillion, five billion, one hundred forty-five million, two hundred thirty-one thousand, three hundred fifteen".