1131510606525 has 36 divisors (see below), whose sum is σ = 2182558242228. Its totient is φ = 557051374080.

The previous prime is 1131510606481. The next prime is 1131510606529. The reversal of 1131510606525 is 5256060151311.

1131510606525 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 510 + 60 + 65 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 95597837721 + 1035912768804 = 309189^2 + 1017798^2 .

It is not a de Polignac number, because 1131510606525 - 2⁷ = 1131510606397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131510606525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131510606529) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 193417692 + ... + 193423541.

Almost surely, 2^{1131510606525} is an apocalyptic number.

1131510606525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131510606525 is a deficient number, since it is larger than the sum of its proper divisors (1051047635703).

1131510606525 is a wasteful number, since it uses less digits than its factorization.

1131510606525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386841262 (or 386841254 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 1131510606525 its reverse (5256060151311), we get a palindrome (6387570757836).

The spelling of 1131510606525 in words is "one trillion, one hundred thirty-one billion, five hundred ten million, six hundred six thousand, five hundred twenty-five".