2125611629 has 2 divisors, whose sum is σ = 2125611630. Its totient is φ = 2125611628.

The previous prime is 2125611617. The next prime is 2125611659. The reversal of 2125611629 is 9261165212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1389574729 + 736036900 = 37277^2 + 27130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125611629 - 2²⁰ = 2124563053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125611659) 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, 1062805814 + 1062805815.

It is an arithmetic number, because the mean of its divisors is an integer number (1062805815).

Almost surely, 2^2125611629 is an apocalyptic number.

It is an amenable number.

2125611629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125611629 is an equidigital number, since it uses as much as digits as its factorization.

2125611629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 2125611629 is about 46104.3558571205. The cubic root of 2125611629 is about 1285.7641301940.

The spelling of 2125611629 in words is "two billion, one hundred twenty-five million, six hundred eleven thousand, six hundred twenty-nine".