725165135 has 8 divisors (see below), whose sum is σ = 870455040. Its totient is φ = 579960864.

The previous prime is 725165099. The next prime is 725165149. The reversal of 725165135 is 531561527.

725165135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 725165135 - 2⁶ = 725165071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725165095 and 725165104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007 + ... + 38096.

It is an arithmetic number, because the mean of its divisors is an integer number (108806880).

Almost surely, 2^725165135 is an apocalyptic number.

725165135 is a deficient number, since it is larger than the sum of its proper divisors (145289905).

725165135 is a wasteful number, since it uses less digits than its factorization.

725165135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42817.

The product of its digits is 31500, while the sum is 35.

The square root of 725165135 is about 26928.8903410445. The cubic root of 725165135 is about 898.4190909105.

The spelling of 725165135 in words is "seven hundred twenty-five million, one hundred sixty-five thousand, one hundred thirty-five".