1125327131 has 2 divisors, whose sum is σ = 1125327132. Its totient is φ = 1125327130.

The previous prime is 1125327127. The next prime is 1125327149. The reversal of 1125327131 is 1317235211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125327131 - 2² = 1125327127 is a prime.

It is a super-2 number, since 2×1125327131² = 2532722303529382322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125327131.

It is not a weakly prime, because it can be changed into another prime (1125327191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562663565 + 562663566.

It is an arithmetic number, because the mean of its divisors is an integer number (562663566).

Almost surely, 2^1125327131 is an apocalyptic number.

1125327131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125327131 is an equidigital number, since it uses as much as digits as its factorization.

1125327131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 1125327131 is about 33545.8958890652. The cubic root of 1125327131 is about 1040.1427106306.

The spelling of 1125327131 in words is "one billion, one hundred twenty-five million, three hundred twenty-seven thousand, one hundred thirty-one".