899255144 has 8 divisors (see below), whose sum is σ = 1686103410. Its totient is φ = 449627568.

The previous prime is 899255143. The next prime is 899255177. The reversal of 899255144 is 441552998.

It is a happy number.

899255144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 455310244 + 443944900 = 21338^2 + 21070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (899255143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56203439 + ... + 56203454.

Almost surely, 2^899255144 is an apocalyptic number.

It is an amenable number.

899255144 is a deficient number, since it is larger than the sum of its proper divisors (786848266).

899255144 is a wasteful number, since it uses less digits than its factorization.

899255144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112406899 (or 112406895 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 899255144 is about 29987.5831637029. The cubic root of 899255144 is about 965.2229590329. Note that the first 3 decimals are identical.

The spelling of 899255144 in words is "eight hundred ninety-nine million, two hundred fifty-five thousand, one hundred forty-four".