1125778807 has 2 divisors, whose sum is σ = 1125778808. Its totient is φ = 1125778806.

The previous prime is 1125778789. The next prime is 1125778813. The reversal of 1125778807 is 7088775211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125778807 - 2⁷ = 1125778679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125778007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562889403 + 562889404.

It is an arithmetic number, because the mean of its divisors is an integer number (562889404).

Almost surely, 2^1125778807 is an apocalyptic number.

1125778807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125778807 is an equidigital number, since it uses as much as digits as its factorization.

1125778807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219520, while the sum is 46.

The square root of 1125778807 is about 33552.6274231989. The cubic root of 1125778807 is about 1040.2818537722.

The spelling of 1125778807 in words is "one billion, one hundred twenty-five million, seven hundred seventy-eight thousand, eight hundred seven".