525126131 has 2 divisors, whose sum is σ = 525126132. Its totient is φ = 525126130.

The previous prime is 525126079. The next prime is 525126181. The reversal of 525126131 is 131621525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525126131 is a prime.

It is a super-3 number, since 3×525126131³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 525126131.

It is not a weakly prime, because it can be changed into another prime (525126181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262563065 + 262563066.

It is an arithmetic number, because the mean of its divisors is an integer number (262563066).

Almost surely, 2^525126131 is an apocalyptic number.

525126131 is a deficient number, since it is larger than the sum of its proper divisors (1).

525126131 is an equidigital number, since it uses as much as digits as its factorization.

525126131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 525126131 is about 22915.6307135544. The cubic root of 525126131 is about 806.7789220832.

Adding to 525126131 its reverse (131621525), we get a palindrome (656747656).

The spelling of 525126131 in words is "five hundred twenty-five million, one hundred twenty-six thousand, one hundred thirty-one".