135800246797 has 2 divisors, whose sum is σ = 135800246798. Its totient is φ = 135800246796.

The previous prime is 135800246789. The next prime is 135800246801. The reversal of 135800246797 is 797642008531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73782313641 + 62017933156 = 271629^2 + 249034^2 .

It is an emirp because it is prime and its reverse (797642008531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135800246797 - 2³ = 135800246789 is a prime.

It is a super-2 number, since 2×135800246797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135800246737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67900123398 + 67900123399.

It is an arithmetic number, because the mean of its divisors is an integer number (67900123399).

It is a 1-persistent number, because it is pandigital, but 2⋅135800246797 = 271600493594 is not.

Almost surely, 2^135800246797 is an apocalyptic number.

It is an amenable number.

135800246797 is a deficient number, since it is larger than the sum of its proper divisors (1).

135800246797 is an equidigital number, since it uses as much as digits as its factorization.

135800246797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 135800246797 in words is "one hundred thirty-five billion, eight hundred million, two hundred forty-six thousand, seven hundred ninety-seven".