10131525 has 36 divisors (see below), whose sum is σ = 18652452. Its totient is φ = 5253120.

The previous prime is 10131491. The next prime is 10131529. The reversal of 10131525 is 52513101.

10131525 is a `hidden beast` number, since 10 + 131 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 36 + 10131489 = 6^2 + 3183^2 .

It is not a de Polignac number, because 10131525 - 2¹⁷ = 10000453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10131498 and 10131507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131529) 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, 7717 + ... + 8933.

Almost surely, 2^10131525 is an apocalyptic number.

10131525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10131525 is a deficient number, since it is larger than the sum of its proper divisors (8520927).

10131525 is a wasteful number, since it uses less digits than its factorization.

10131525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 10131525 is about 3183.0056550374. The cubic root of 10131525 is about 216.3838980529.

Adding to 10131525 its reverse (52513101), we get a palindrome (62644626).

It can be divided in two parts, 101 and 31525, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 10131525 in words is "ten million, one hundred thirty-one thousand, five hundred twenty-five".