1087130557 has 2 divisors, whose sum is σ = 1087130558. Its totient is φ = 1087130556.

The previous prime is 1087130533. The next prime is 1087130567. The reversal of 1087130557 is 7550317801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952895161 + 134235396 = 30869^2 + 11586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087130557 - 2²³ = 1078741949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087130567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543565278 + 543565279.

It is an arithmetic number, because the mean of its divisors is an integer number (543565279).

Almost surely, 2^1087130557 is an apocalyptic number.

It is an amenable number.

1087130557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087130557 is an equidigital number, since it uses as much as digits as its factorization.

1087130557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 1087130557 is about 32971.6629395607. The cubic root of 1087130557 is about 1028.2385947750.

The spelling of 1087130557 in words is "one billion, eighty-seven million, one hundred thirty thousand, five hundred fifty-seven".