1121814525 has 24 divisors (see below), whose sum is σ = 1997406880. Its totient is φ = 552277440.

The previous prime is 1121814517. The next prime is 1121814539. The reversal of 1121814525 is 5254181211.

It is not a de Polignac number, because 1121814525 - 2³ = 1121814517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121814492 and 1121814501.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 574315 + ... + 576264.

Almost surely, 2^1121814525 is an apocalyptic number.

1121814525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121814525 is a deficient number, since it is larger than the sum of its proper divisors (875592355).

1121814525 is a wasteful number, since it uses less digits than its factorization.

1121814525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150605 (or 1150600 counting only the distinct ones).

The product of its digits is 3200, while the sum is 30.

The square root of 1121814525 is about 33493.4997424873. The cubic root of 1121814525 is about 1039.0593457722.

Adding to 1121814525 its reverse (5254181211), we get a palindrome (6375995736).

The spelling of 1121814525 in words is "one billion, one hundred twenty-one million, eight hundred fourteen thousand, five hundred twenty-five".