2130251009 has 2 divisors, whose sum is σ = 2130251010. Its totient is φ = 2130251008.

The previous prime is 2130250973. The next prime is 2130251041. The reversal of 2130251009 is 9001520312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1927473409 + 202777600 = 43903^2 + 14240^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130251009 - 2⁸ = 2130250753 is a prime.

It is a super-2 number, since 2×2130251009² = 9075938722691036162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2130251059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065125504 + 1065125505.

It is an arithmetic number, because the mean of its divisors is an integer number (1065125505).

Almost surely, 2^2130251009 is an apocalyptic number.

It is an amenable number.

2130251009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130251009 is an equidigital number, since it uses as much as digits as its factorization.

2130251009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2130251009 is about 46154.6423342225. The cubic root of 2130251009 is about 1286.6988907590.

The spelling of 2130251009 in words is "two billion, one hundred thirty million, two hundred fifty-one thousand, nine".