1005252145499 has 8 divisors (see below), whose sum is σ = 1216439571168. Its totient is φ = 810959713920.

The previous prime is 1005252145361. The next prime is 1005252145501. The reversal of 1005252145499 is 9945412525001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005252145499 - 2¹² = 1005252141403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005252148499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4223748392 + ... + 4223748629.

It is an arithmetic number, because the mean of its divisors is an integer number (152054946396).

Almost surely, 2^{1005252145499} is an apocalyptic number.

1005252145499 is a deficient number, since it is larger than the sum of its proper divisors (211187425669).

1005252145499 is an equidigital number, since it uses as much as digits as its factorization.

1005252145499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447497045.

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 1005252145499 in words is "one trillion, five billion, two hundred fifty-two million, one hundred forty-five thousand, four hundred ninety-nine".