5130621187 has 2 divisors, whose sum is σ = 5130621188. Its totient is φ = 5130621186.

The previous prime is 5130621149. The next prime is 5130621227. The reversal of 5130621187 is 7811260315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5130621187 - 2¹¹ = 5130619139 is a prime.

It is not a weakly prime, because it can be changed into another prime (5130621137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565310593 + 2565310594.

It is an arithmetic number, because the mean of its divisors is an integer number (2565310594).

Almost surely, 2^5130621187 is an apocalyptic number.

5130621187 is a deficient number, since it is larger than the sum of its proper divisors (1).

5130621187 is an equidigital number, since it uses as much as digits as its factorization.

5130621187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 5130621187 is about 71628.3546299927. The cubic root of 5130621187 is about 1724.7387337419.

The spelling of 5130621187 in words is "five billion, one hundred thirty million, six hundred twenty-one thousand, one hundred eighty-seven".