853191490 has 16 divisors (see below), whose sum is σ = 1536133752. Its totient is φ = 341190144.

The previous prime is 853191481. The next prime is 853191497. The reversal of 853191490 is 94191358.

853191490 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 4 ways, for example, as 568965609 + 284225881 = 23853^2 + 16859^2 .

It is not an unprimeable number, because it can be changed into a prime (853191497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43762 + ... + 60178.

Almost surely, 2^853191490 is an apocalyptic number.

853191490 is a deficient number, since it is larger than the sum of its proper divisors (682942262).

853191490 is a wasteful number, since it uses less digits than its factorization.

853191490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21621.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 853191490 is about 29209.4417954195. The cubic root of 853191490 is about 948.4523239516.

The spelling of 853191490 in words is "eight hundred fifty-three million, one hundred ninety-one thousand, four hundred ninety".