1052155515442 has 16 divisors (see below), whose sum is σ = 1590226216992. Its totient is φ = 522082395040.

The previous prime is 1052155515403. The next prime is 1052155515443. The reversal of 1052155515442 is 2445155512501.

It is a super-2 number, since 2×1052155515442² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052155515395 and 1052155515404.

It is not an unprimeable number, because it can be changed into a prime (1052155515443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354093 + ... + 1493215.

It is an arithmetic number, because the mean of its divisors is an integer number (99389138562).

Almost surely, 2^{1052155515442} is an apocalyptic number.

1052155515442 is a deficient number, since it is larger than the sum of its proper divisors (538070701550).

1052155515442 is a wasteful number, since it uses less digits than its factorization.

1052155515442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142633.

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 1052155515442 in words is "one trillion, fifty-two billion, one hundred fifty-five million, five hundred fifteen thousand, four hundred forty-two".