1025105440142 has 8 divisors (see below), whose sum is σ = 1757323611696. Its totient is φ = 439330902912.

The previous prime is 1025105440141. The next prime is 1025105440207. The reversal of 1025105440142 is 2410445015201.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025105440141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36610908563 + ... + 36610908590.

It is an arithmetic number, because the mean of its divisors is an integer number (219665451462).

Almost surely, 2^{1025105440142} is an apocalyptic number.

1025105440142 is a deficient number, since it is larger than the sum of its proper divisors (732218171554).

1025105440142 is an equidigital number, since it uses as much as digits as its factorization.

1025105440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73221817162.

The product of its (nonzero) digits is 6400, while the sum is 29.

The spelling of 1025105440142 in words is "one trillion, twenty-five billion, one hundred five million, four hundred forty thousand, one hundred forty-two".