1157755799 has 2 divisors, whose sum is σ = 1157755800. Its totient is φ = 1157755798.

The previous prime is 1157755793. The next prime is 1157755813. The reversal of 1157755799 is 9975577511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157755799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157755793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578877899 + 578877900.

It is an arithmetic number, because the mean of its divisors is an integer number (578877900).

Almost surely, 2^1157755799 is an apocalyptic number.

1157755799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157755799 is an equidigital number, since it uses as much as digits as its factorization.

1157755799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3472875, while the sum is 56.

The square root of 1157755799 is about 34025.8107765267. The cubic root of 1157755799 is about 1050.0395446936.

It can be divided in two parts, 11577 and 55799, that added together give a palindrome (67376).

The spelling of 1157755799 in words is "one billion, one hundred fifty-seven million, seven hundred fifty-five thousand, seven hundred ninety-nine".