1157055577 has 2 divisors, whose sum is σ = 1157055578. Its totient is φ = 1157055576.

The previous prime is 1157055539. The next prime is 1157055583. The reversal of 1157055577 is 7755507511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949810761 + 207244816 = 30819^2 + 14396^2 .

It is an emirp because it is prime and its reverse (7755507511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157055577 - 2²³ = 1148666969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157055517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578527788 + 578527789.

It is an arithmetic number, because the mean of its divisors is an integer number (578527789).

Almost surely, 2^1157055577 is an apocalyptic number.

It is an amenable number.

1157055577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157055577 is an equidigital number, since it uses as much as digits as its factorization.

1157055577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214375, while the sum is 43.

The square root of 1157055577 is about 34015.5196491249. The cubic root of 1157055577 is about 1049.8278106153.

The spelling of 1157055577 in words is "one billion, one hundred fifty-seven million, fifty-five thousand, five hundred seventy-seven".