135873825 has 12 divisors (see below), whose sum is σ = 224644848. Its totient is φ = 72466000.

The previous prime is 135873791. The next prime is 135873827. The reversal of 135873825 is 528378531.

It is not a de Polignac number, because 135873825 - 2⁶ = 135873761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135873827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 905751 + ... + 905900.

It is an arithmetic number, because the mean of its divisors is an integer number (18720404).

Almost surely, 2^135873825 is an apocalyptic number.

135873825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135873825 is a deficient number, since it is larger than the sum of its proper divisors (88771023).

135873825 is a wasteful number, since it uses less digits than its factorization.

135873825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811664 (or 1811659 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 135873825 is about 11656.4928258889. The cubic root of 135873825 is about 514.0972338975.

The spelling of 135873825 in words is "one hundred thirty-five million, eight hundred seventy-three thousand, eight hundred twenty-five".