985019194 has 4 divisors (see below), whose sum is σ = 1477528794. Its totient is φ = 492509596.

The previous prime is 985019153. The next prime is 985019197. The reversal of 985019194 is 491910589.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 957593025 + 27426169 = 30945^2 + 5237^2 .

It is not an unprimeable number, because it can be changed into a prime (985019197) 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 as a sum of consecutive naturals, namely, 246254797 + ... + 246254800.

Almost surely, 2^985019194 is an apocalyptic number.

985019194 is a deficient number, since it is larger than the sum of its proper divisors (492509600).

985019194 is a wasteful number, since it uses less digits than its factorization.

985019194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492509599.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 985019194 is about 31385.0154373070. The cubic root of 985019194 is about 994.9812523087.

The spelling of 985019194 in words is "nine hundred eighty-five million, nineteen thousand, one hundred ninety-four".