1545555231122 has 32 divisors (see below), whose sum is σ = 2706628193280. Its totient is φ = 648214822080.

The previous prime is 1545555231113. The next prime is 1545555231163. The reversal of 1545555231122 is 2211325555451.

It is a self number, because there is not a number n which added to its sum of digits gives 1545555231122.

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 15 ways as a sum of consecutive naturals, for example, 4425122 + ... + 4761597.

It is an arithmetic number, because the mean of its divisors is an integer number (84582131040).

Almost surely, 2^{1545555231122} is an apocalyptic number.

1545555231122 is a deficient number, since it is larger than the sum of its proper divisors (1161072962158).

1545555231122 is a wasteful number, since it uses less digits than its factorization.

1545555231122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9186986.

The product of its digits is 300000, while the sum is 41.

The spelling of 1545555231122 in words is "one trillion, five hundred forty-five billion, five hundred fifty-five million, two hundred thirty-one thousand, one hundred twenty-two".