1252354471142 has 24 divisors (see below), whose sum is σ = 1979371639800. Its totient is φ = 592630172928.

The previous prime is 1252354471099. The next prime is 1252354471219. The reversal of 1252354471142 is 2411744532521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252354471142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41006534 + ... + 41037062.

It is an arithmetic number, because the mean of its divisors is an integer number (82473818325).

Almost surely, 2^{1252354471142} is an apocalyptic number.

1252354471142 is a deficient number, since it is larger than the sum of its proper divisors (727017168658).

1252354471142 is an equidigital number, since it uses as much as digits as its factorization.

1252354471142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32628 (or 31589 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The spelling of 1252354471142 in words is "one trillion, two hundred fifty-two billion, three hundred fifty-four million, four hundred seventy-one thousand, one hundred forty-two".