899725135 has 8 divisors (see below), whose sum is σ = 1094877216. Its totient is φ = 709642080.

The previous prime is 899725129. The next prime is 899725139. The reversal of 899725135 is 531527998.

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

It is not a de Polignac number, because 899725135 - 2⁵ = 899725103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899725139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266864 + ... + 1267573.

It is an arithmetic number, because the mean of its divisors is an integer number (136859652).

Almost surely, 2^899725135 is an apocalyptic number.

899725135 is a deficient number, since it is larger than the sum of its proper divisors (195152081).

899725135 is a wasteful number, since it uses less digits than its factorization.

899725135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534513.

The product of its digits is 680400, while the sum is 49.

The square root of 899725135 is about 29995.4185668412. The cubic root of 899725135 is about 965.3910859907.

The spelling of 899725135 in words is "eight hundred ninety-nine million, seven hundred twenty-five thousand, one hundred thirty-five".