1125836687 has 2 divisors, whose sum is σ = 1125836688. Its totient is φ = 1125836686.

The previous prime is 1125836681. The next prime is 1125836737. The reversal of 1125836687 is 7866385211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125836687 - 2¹⁰ = 1125835663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125836681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562918343 + 562918344.

It is an arithmetic number, because the mean of its divisors is an integer number (562918344).

Almost surely, 2^1125836687 is an apocalyptic number.

1125836687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125836687 is an equidigital number, since it uses as much as digits as its factorization.

1125836687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The square root of 1125836687 is about 33553.4899377099. The cubic root of 1125836687 is about 1040.2996815732.

The spelling of 1125836687 in words is "one billion, one hundred twenty-five million, eight hundred thirty-six thousand, six hundred eighty-seven".