1125863693 has 2 divisors, whose sum is σ = 1125863694. Its totient is φ = 1125863692.

The previous prime is 1125863653. The next prime is 1125863699. The reversal of 1125863693 is 3963685211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007554564 + 118309129 = 31742^2 + 10877^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125863693 - 2¹² = 1125859597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125863699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562931846 + 562931847.

It is an arithmetic number, because the mean of its divisors is an integer number (562931847).

Almost surely, 2^1125863693 is an apocalyptic number.

It is an amenable number.

1125863693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125863693 is an equidigital number, since it uses as much as digits as its factorization.

1125863693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 1125863693 is about 33553.8923673543. The cubic root of 1125863693 is about 1040.3079995673.

The spelling of 1125863693 in words is "one billion, one hundred twenty-five million, eight hundred sixty-three thousand, six hundred ninety-three".