200146986 has 48 divisors (see below), whose sum is σ = 479652264. Its totient is φ = 59916672.

The previous prime is 200146981. The next prime is 200146997. The reversal of 200146986 is 689641002.

It can be written as a sum of positive squares in 4 ways, for example, as 109307025 + 90839961 = 10455^2 + 9531^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 200146986.

It is not an unprimeable number, because it can be changed into a prime (200146981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2901 + ... + 20216.

Almost surely, 2^200146986 is an apocalyptic number.

200146986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

200146986 is an abundant number, since it is smaller than the sum of its proper divisors (279505278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200146986 is a wasteful number, since it uses less digits than its factorization.

200146986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23175 (or 23172 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 200146986 is about 14147.3314091386. The cubic root of 200146986 is about 584.9467757845.

Adding to 200146986 its reverse (689641002), we get a palindrome (889787988).

It can be divided in two parts, 20014 and 6986, that added together give a cube (27000 = 30³).

The spelling of 200146986 in words is "two hundred million, one hundred forty-six thousand, nine hundred eighty-six".