1125207518155 has 16 divisors (see below), whose sum is σ = 1548103624704. Its totient is φ = 769089926880.

The previous prime is 1125207518147. The next prime is 1125207518173. The reversal of 1125207518155 is 5518157025211.

It is not a de Polignac number, because 1125207518155 - 2³ = 1125207518147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51675267 + ... + 51697036.

It is an arithmetic number, because the mean of its divisors is an integer number (96756476544).

Almost surely, 2^{1125207518155} is an apocalyptic number.

1125207518155 is a deficient number, since it is larger than the sum of its proper divisors (422896106549).

1125207518155 is a wasteful number, since it uses less digits than its factorization.

1125207518155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103372626.

The product of its (nonzero) digits is 140000, while the sum is 43.

The spelling of 1125207518155 in words is "one trillion, one hundred twenty-five billion, two hundred seven million, five hundred eighteen thousand, one hundred fifty-five".