2134246381 has 2 divisors, whose sum is σ = 2134246382. Its totient is φ = 2134246380.

The previous prime is 2134246379. The next prime is 2134246427. The reversal of 2134246381 is 1836424312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811864356 + 322382025 = 42566^2 + 17955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134246381 - 2¹ = 2134246379 is a prime.

It is a super-2 number, since 2×2134246381² = 9110015229623194322, which contains 22 as substring.

Together with 2134246379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134246781) 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, 1067123190 + 1067123191.

It is an arithmetic number, because the mean of its divisors is an integer number (1067123191).

Almost surely, 2^2134246381 is an apocalyptic number.

It is an amenable number.

2134246381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134246381 is an equidigital number, since it uses as much as digits as its factorization.

2134246381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 2134246381 is about 46197.9045087545. The cubic root of 2134246381 is about 1287.5028069942.

The spelling of 2134246381 in words is "two billion, one hundred thirty-four million, two hundred forty-six thousand, three hundred eighty-one".