2535438121 has 2 divisors, whose sum is σ = 2535438122. Its totient is φ = 2535438120.

The previous prime is 2535438119. The next prime is 2535438149. The reversal of 2535438121 is 1218345352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2428025625 + 107412496 = 49275^2 + 10364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2535438121 - 2¹ = 2535438119 is a prime.

Together with 2535438119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2535438151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267719060 + 1267719061.

It is an arithmetic number, because the mean of its divisors is an integer number (1267719061).

Almost surely, 2^2535438121 is an apocalyptic number.

It is an amenable number.

2535438121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2535438121 is an equidigital number, since it uses as much as digits as its factorization.

2535438121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 2535438121 is about 50353.1341725617. The cubic root of 2535438121 is about 1363.5916670940.

The spelling of 2535438121 in words is "two billion, five hundred thirty-five million, four hundred thirty-eight thousand, one hundred twenty-one".