1131353525 has 12 divisors (see below), whose sum is σ = 1448133504. Its totient is φ = 875886000.

The previous prime is 1131353513. The next prime is 1131353543. The reversal of 1131353525 is 5253531311.

It is a happy number.

It is not a de Polignac number, because 1131353525 - 2¹⁰ = 1131352501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729131 + ... + 730680.

It is an arithmetic number, because the mean of its divisors is an integer number (120677792).

Almost surely, 2^1131353525 is an apocalyptic number.

It is an amenable number.

1131353525 is a deficient number, since it is larger than the sum of its proper divisors (316779979).

1131353525 is a wasteful number, since it uses less digits than its factorization.

1131353525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459852 (or 1459847 counting only the distinct ones).

The product of its digits is 6750, while the sum is 29.

The square root of 1131353525 is about 33635.5990730060. The cubic root of 1131353525 is about 1041.9961431009.

Adding to 1131353525 its reverse (5253531311), we get a palindrome (6384884836).

The spelling of 1131353525 in words is "one billion, one hundred thirty-one million, three hundred fifty-three thousand, five hundred twenty-five".