2134254121 has 2 divisors, whose sum is σ = 2134254122. Its totient is φ = 2134254120.

The previous prime is 2134254119. The next prime is 2134254127. The reversal of 2134254121 is 1214524312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1988714025 + 145540096 = 44595^2 + 12064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134254121 - 2¹ = 2134254119 is a prime.

Together with 2134254119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2134254127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067127060 + 1067127061.

It is an arithmetic number, because the mean of its divisors is an integer number (1067127061).

Almost surely, 2^2134254121 is an apocalyptic number.

It is an amenable number.

2134254121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134254121 is an equidigital number, since it uses as much as digits as its factorization.

2134254121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 2134254121 is about 46197.9882787119. The cubic root of 2134254121 is about 1287.5043633999.

Adding to 2134254121 its reverse (1214524312), we get a palindrome (3348778433).

The spelling of 2134254121 in words is "two billion, one hundred thirty-four million, two hundred fifty-four thousand, one hundred twenty-one".