1087879157 has 2 divisors, whose sum is σ = 1087879158. Its totient is φ = 1087879156.

The previous prime is 1087879103. The next prime is 1087879183. The reversal of 1087879157 is 7519787801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 566487601 + 521391556 = 23801^2 + 22834^2 .

It is an emirp because it is prime and its reverse (7519787801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087879157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1087879099 and 1087879108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087879357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543939578 + 543939579.

It is an arithmetic number, because the mean of its divisors is an integer number (543939579).

Almost surely, 2^1087879157 is an apocalyptic number.

It is an amenable number.

1087879157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087879157 is an equidigital number, since it uses as much as digits as its factorization.

1087879157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 53.

The square root of 1087879157 is about 32983.0131582910. The cubic root of 1087879157 is about 1028.4745562528.

The spelling of 1087879157 in words is "one billion, eighty-seven million, eight hundred seventy-nine thousand, one hundred fifty-seven".