4251214987 has 2 divisors, whose sum is σ = 4251214988. Its totient is φ = 4251214986.

The previous prime is 4251214921. The next prime is 4251214991. The reversal of 4251214987 is 7894121524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4251214987 - 2⁷ = 4251214859 is a prime.

It is not a weakly prime, because it can be changed into another prime (4251214997) 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, 2125607493 + 2125607494.

It is an arithmetic number, because the mean of its divisors is an integer number (2125607494).

Almost surely, 2^4251214987 is an apocalyptic number.

4251214987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251214987 is an equidigital number, since it uses as much as digits as its factorization.

4251214987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 4251214987 is about 65201.3419110374. The cubic root of 4251214987 is about 1619.9602422545.

The spelling of 4251214987 in words is "four billion, two hundred fifty-one million, two hundred fourteen thousand, nine hundred eighty-seven".