135725851 has 2 divisors, whose sum is σ = 135725852. Its totient is φ = 135725850.

The previous prime is 135725839. The next prime is 135725903. The reversal of 135725851 is 158527531.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (158527531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135725851 - 2¹¹ = 135723803 is a prime.

It is equal to p_7684129 and since 135725851 and 7684129 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135725851.

It is not a weakly prime, because it can be changed into another prime (135725831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67862925 + 67862926.

It is an arithmetic number, because the mean of its divisors is an integer number (67862926).

Almost surely, 2^135725851 is an apocalyptic number.

135725851 is a deficient number, since it is larger than the sum of its proper divisors (1).

135725851 is an equidigital number, since it uses as much as digits as its factorization.

135725851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 37.

The square root of 135725851 is about 11650.1438188548. The cubic root of 135725851 is about 513.9105394730.

The spelling of 135725851 in words is "one hundred thirty-five million, seven hundred twenty-five thousand, eight hundred fifty-one".