2600137081 has 2 divisors, whose sum is σ = 2600137082. Its totient is φ = 2600137080.

The previous prime is 2600137039. The next prime is 2600137103. The reversal of 2600137081 is 1807310062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2420148025 + 179989056 = 49195^2 + 13416^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600137081 - 2¹³ = 2600128889 is a prime.

It is a super-2 number, since 2×2600137081² = 13521425679982401122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2600137481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300068540 + 1300068541.

It is an arithmetic number, because the mean of its divisors is an integer number (1300068541).

Almost surely, 2^2600137081 is an apocalyptic number.

It is an amenable number.

2600137081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2600137081 is an equidigital number, since it uses as much as digits as its factorization.

2600137081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2600137081 is about 50991.5393080068. The cubic root of 2600137081 is about 1375.0930327796.

The spelling of 2600137081 in words is "two billion, six hundred million, one hundred thirty-seven thousand, eighty-one".