7125130531 has 2 divisors, whose sum is σ = 7125130532. Its totient is φ = 7125130530.

The previous prime is 7125130517. The next prime is 7125130567. The reversal of 7125130531 is 1350315217.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7125130531 - 2⁵ = 7125130499 is a prime.

It is a super-2 number, since 2×7125130531² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7125130531.

It is not a weakly prime, because it can be changed into another prime (7125130591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3562565265 + 3562565266.

It is an arithmetic number, because the mean of its divisors is an integer number (3562565266).

Almost surely, 2^7125130531 is an apocalyptic number.

7125130531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7125130531 is an equidigital number, since it uses as much as digits as its factorization.

7125130531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 7125130531 is about 84410.4882760430. The cubic root of 7125130531 is about 1924.2623164135.

Adding to 7125130531 its reverse (1350315217), we get a palindrome (8475445748).

The spelling of 7125130531 in words is "seven billion, one hundred twenty-five million, one hundred thirty thousand, five hundred thirty-one".