2130251 has 2 divisors, whose sum is σ = 2130252. Its totient is φ = 2130250.

The previous prime is 2130241. The next prime is 2130269. The reversal of 2130251 is 1520312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2130251 - 2¹⁰ = 2129227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065125 + 1065126.

It is an arithmetic number, because the mean of its divisors is an integer number (1065126).

2^2130251 is an apocalyptic number.

2130251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130251 is an equidigital number, since it uses as much as digits as its factorization.

2130251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2130251 is about 1459.5379405826. The cubic root of 2130251 is about 128.6698888947.

Adding to 2130251 its reverse (1520312), we get a palindrome (3650563).

The spelling of 2130251 in words is "two million, one hundred thirty thousand, two hundred fifty-one".