2587105121 has 2 divisors, whose sum is σ = 2587105122. Its totient is φ = 2587105120.

The previous prime is 2587105117. The next prime is 2587105187. The reversal of 2587105121 is 1215017852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2518032400 + 69072721 = 50180^2 + 8311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587105121 - 2² = 2587105117 is a prime.

It is a super-2 number, since 2×2587105121² = 13386225814208849282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2587105111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293552560 + 1293552561.

It is an arithmetic number, because the mean of its divisors is an integer number (1293552561).

Almost surely, 2^2587105121 is an apocalyptic number.

It is an amenable number.

2587105121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587105121 is an equidigital number, since it uses as much as digits as its factorization.

2587105121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 2587105121 is about 50863.5932765274. The cubic root of 2587105121 is about 1372.7918490009.

The spelling of 2587105121 in words is "two billion, five hundred eighty-seven million, one hundred five thousand, one hundred twenty-one".