2125651189 has 2 divisors, whose sum is σ = 2125651190. Its totient is φ = 2125651188.

The previous prime is 2125651141. The next prime is 2125651223. The reversal of 2125651189 is 9811565212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2121063025 + 4588164 = 46055^2 + 2142^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125651189 - 2⁷ = 2125651061 is a prime.

It is a super-2 number, since 2×2125651189² = 9036785954594227442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125681189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062825594 + 1062825595.

It is an arithmetic number, because the mean of its divisors is an integer number (1062825595).

Almost surely, 2^2125651189 is an apocalyptic number.

It is an amenable number.

2125651189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125651189 is an equidigital number, since it uses as much as digits as its factorization.

2125651189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 40.

The square root of 2125651189 is about 46104.7848818320. The cubic root of 2125651189 is about 1285.7721066454.

The spelling of 2125651189 in words is "two billion, one hundred twenty-five million, six hundred fifty-one thousand, one hundred eighty-nine".