135500825389 has 2 divisors, whose sum is σ = 135500825390. Its totient is φ = 135500825388.

The previous prime is 135500825387. The next prime is 135500825423. The reversal of 135500825389 is 983528005531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132696275625 + 2804549764 = 364275^2 + 52958^2 .

It is a cyclic number.

It is not a de Polignac number, because 135500825389 - 2¹ = 135500825387 is a prime.

It is a super-2 number, since 2×135500825389² (a number of 23 digits) contains 22 as substring.

Together with 135500825387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135500825387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67750412694 + 67750412695.

It is an arithmetic number, because the mean of its divisors is an integer number (67750412695).

Almost surely, 2^135500825389 is an apocalyptic number.

It is an amenable number.

135500825389 is a deficient number, since it is larger than the sum of its proper divisors (1).

135500825389 is an equidigital number, since it uses as much as digits as its factorization.

135500825389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 135500825389 in words is "one hundred thirty-five billion, five hundred million, eight hundred twenty-five thousand, three hundred eighty-nine".