6535812137 has 2 divisors, whose sum is σ = 6535812138. Its totient is φ = 6535812136.

The previous prime is 6535812097. The next prime is 6535812167. The reversal of 6535812137 is 7312185356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5838640921 + 697171216 = 76411^2 + 26404^2 .

It is a cyclic number.

It is not a de Polignac number, because 6535812137 - 2³² = 2240844841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6535812094 and 6535812103.

It is not a weakly prime, because it can be changed into another prime (6535812167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267906068 + 3267906069.

It is an arithmetic number, because the mean of its divisors is an integer number (3267906069).

Almost surely, 2^6535812137 is an apocalyptic number.

It is an amenable number.

6535812137 is a deficient number, since it is larger than the sum of its proper divisors (1).

6535812137 is an equidigital number, since it uses as much as digits as its factorization.

6535812137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 6535812137 is about 80844.3698534412. The cubic root of 6535812137 is about 1869.6767184961.

The spelling of 6535812137 in words is "six billion, five hundred thirty-five million, eight hundred twelve thousand, one hundred thirty-seven".