135825817 has 8 divisors (see below), whose sum is σ = 140789376. Its totient is φ = 130948752.

The previous prime is 135825799. The next prime is 135825827. The reversal of 135825817 is 718528531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135825817 - 2⁷ = 135825689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135825817.

It is not an unprimeable number, because it can be changed into a prime (135825827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18418 + ... + 24715.

It is an arithmetic number, because the mean of its divisors is an integer number (17598672).

Almost surely, 2^135825817 is an apocalyptic number.

It is an amenable number.

135825817 is a deficient number, since it is larger than the sum of its proper divisors (4963559).

135825817 is an equidigital number, since it uses as much as digits as its factorization.

135825817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43247.

The product of its digits is 67200, while the sum is 40.

The square root of 135825817 is about 11654.4333624591. The cubic root of 135825817 is about 514.0366784830.

The spelling of 135825817 in words is "one hundred thirty-five million, eight hundred twenty-five thousand, eight hundred seventeen".