1042155155225 has 48 divisors (see below), whose sum is σ = 1382384365488. Its totient is φ = 776636989440.

The previous prime is 1042155155203. The next prime is 1042155155231. The reversal of 1042155155225 is 5225515512401.

It can be written as a sum of positive squares in 24 ways, for example, as 125959688464 + 916195466761 = 354908^2 + 957181^2 .

It is not a de Polignac number, because 1042155155225 - 2²⁰ = 1042154106649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17117939 + ... + 17178711.

It is an arithmetic number, because the mean of its divisors is an integer number (28799674281).

Almost surely, 2^{1042155155225} is an apocalyptic number.

It is an amenable number.

1042155155225 is a deficient number, since it is larger than the sum of its proper divisors (340229210263).

1042155155225 is a wasteful number, since it uses less digits than its factorization.

1042155155225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61214 (or 61209 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 38.

The spelling of 1042155155225 in words is "one trillion, forty-two billion, one hundred fifty-five million, one hundred fifty-five thousand, two hundred twenty-five".