135262545637 has 2 divisors, whose sum is σ = 135262545638. Its totient is φ = 135262545636.

The previous prime is 135262545617. The next prime is 135262545653. The reversal of 135262545637 is 736545262531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103252326241 + 32010219396 = 321329^2 + 178914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135262545637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135262545617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67631272818 + 67631272819.

It is an arithmetic number, because the mean of its divisors is an integer number (67631272819).

Almost surely, 2^135262545637 is an apocalyptic number.

It is an amenable number.

135262545637 is a deficient number, since it is larger than the sum of its proper divisors (1).

135262545637 is an equidigital number, since it uses as much as digits as its factorization.

135262545637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 49.

The spelling of 135262545637 in words is "one hundred thirty-five billion, two hundred sixty-two million, five hundred forty-five thousand, six hundred thirty-seven".