2139337481 has 2 divisors, whose sum is σ = 2139337482. Its totient is φ = 2139337480.

The previous prime is 2139337439. The next prime is 2139337523. The reversal of 2139337481 is 1847339312.

It is a balanced prime because it is at equal distance from previous prime (2139337439) and next prime (2139337523).

It can be written as a sum of positive squares in only one way, i.e., 2132961856 + 6375625 = 46184^2 + 2525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2139337481 is a prime.

It is a super-2 number, since 2×2139337481² = 9153529715222850722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2139336481) 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, 1069668740 + 1069668741.

It is an arithmetic number, because the mean of its divisors is an integer number (1069668741).

Almost surely, 2^2139337481 is an apocalyptic number.

It is an amenable number.

2139337481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139337481 is an equidigital number, since it uses as much as digits as its factorization.

2139337481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 2139337481 is about 46252.9726720348. The cubic root of 2139337481 is about 1288.5257442522.

The spelling of 2139337481 in words is "two billion, one hundred thirty-nine million, three hundred thirty-seven thousand, four hundred eighty-one".