135725827 has 2 divisors, whose sum is σ = 135725828. Its totient is φ = 135725826.

The previous prime is 135725813. The next prime is 135725831. The reversal of 135725827 is 728527531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135725827 - 2²³ = 127337219 is a prime.

It is a super-2 number, since 2×135725827² = 36843000229667858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135725827.

It is not a weakly prime, because it can be changed into another prime (135722827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67862913 + 67862914.

It is an arithmetic number, because the mean of its divisors is an integer number (67862914).

Almost surely, 2^135725827 is an apocalyptic number.

135725827 is a deficient number, since it is larger than the sum of its proper divisors (1).

135725827 is an equidigital number, since it uses as much as digits as its factorization.

135725827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 40.

The square root of 135725827 is about 11650.1427888245. The cubic root of 135725827 is about 513.9105091819.

The spelling of 135725827 in words is "one hundred thirty-five million, seven hundred twenty-five thousand, eight hundred twenty-seven".