5105640187 has 2 divisors, whose sum is σ = 5105640188. Its totient is φ = 5105640186.

The previous prime is 5105640179. The next prime is 5105640289. The reversal of 5105640187 is 7810465015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5105640187 - 2³ = 5105640179 is a prime.

It is not a weakly prime, because it can be changed into another prime (5105640587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552820093 + 2552820094.

It is an arithmetic number, because the mean of its divisors is an integer number (2552820094).

Almost surely, 2^5105640187 is an apocalyptic number.

5105640187 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105640187 is an equidigital number, since it uses as much as digits as its factorization.

5105640187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 5105640187 is about 71453.7625811265. The cubic root of 5105640187 is about 1721.9349266517.

The spelling of 5105640187 in words is "five billion, one hundred five million, six hundred forty thousand, one hundred eighty-seven".