985131008 has 24 divisors (see below), whose sum is σ = 1969785090. Its totient is φ = 492564480.

The previous prime is 985130983. The next prime is 985131013. The reversal of 985131008 is 800131589.

It can be written as a sum of positive squares in only one way, i.e., 776848384 + 208282624 = 27872^2 + 14432^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238463 + ... + 242558.

Almost surely, 2^985131008 is an apocalyptic number.

It is an amenable number.

985131008 is a deficient number, since it is larger than the sum of its proper divisors (984654082).

985131008 is an equidigital number, since it uses as much as digits as its factorization.

985131008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481043 (or 481023 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 985131008 is about 31386.7967145422. The cubic root of 985131008 is about 995.0188991638.

The spelling of 985131008 in words is "nine hundred eighty-five million, one hundred thirty-one thousand, eight".