1245252405173 has 16 divisors (see below), whose sum is σ = 1427534227200. Its totient is φ = 1064072733696.

The previous prime is 1245252405071. The next prime is 1245252405233. The reversal of 1245252405173 is 3715042525421.

It is not a de Polignac number, because 1245252405173 - 2⁸ = 1245252404917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245252405173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245252404173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793503 + ... + 3208451.

It is an arithmetic number, because the mean of its divisors is an integer number (89220889200).

Almost surely, 2^{1245252405173} is an apocalyptic number.

It is an amenable number.

1245252405173 is a deficient number, since it is larger than the sum of its proper divisors (182281822027).

1245252405173 is an equidigital number, since it uses as much as digits as its factorization.

1245252405173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416276.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 1245252405173 in words is "one trillion, two hundred forty-five billion, two hundred fifty-two million, four hundred five thousand, one hundred seventy-three".