1131122525 has 48 divisors (see below), whose sum is σ = 1599480960. Its totient is φ = 787449600.

The previous prime is 1131122521. The next prime is 1131122549. The reversal of 1131122525 is 5252211311.

1131122525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1131122525 - 2² = 1131122521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131122525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131122521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403880 + ... + 406670.

It is an arithmetic number, because the mean of its divisors is an integer number (33322520).

Almost surely, 2^1131122525 is an apocalyptic number.

It is an amenable number.

1131122525 is a deficient number, since it is larger than the sum of its proper divisors (468358435).

1131122525 is a wasteful number, since it uses less digits than its factorization.

1131122525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886 (or 2881 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1131122525 is about 33632.1650358701. The cubic root of 1131122525 is about 1041.9252199433.

Adding to 1131122525 its reverse (5252211311), we get a palindrome (6383333836).

The spelling of 1131122525 in words is "one billion, one hundred thirty-one million, one hundred twenty-two thousand, five hundred twenty-five".