1127755379 has 2 divisors, whose sum is σ = 1127755380. Its totient is φ = 1127755378.

The previous prime is 1127755357. The next prime is 1127755399. The reversal of 1127755379 is 9735577211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1127755379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1127755399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563877689 + 563877690.

It is an arithmetic number, because the mean of its divisors is an integer number (563877690).

Almost surely, 2^1127755379 is an apocalyptic number.

1127755379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127755379 is an equidigital number, since it uses as much as digits as its factorization.

1127755379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 463050, while the sum is 47.

The square root of 1127755379 is about 33582.0693078911. The cubic root of 1127755379 is about 1040.8903184090.

The spelling of 1127755379 in words is "one billion, one hundred twenty-seven million, seven hundred fifty-five thousand, three hundred seventy-nine".