201242000 has 40 divisors (see below), whose sum is σ = 486607992. Its totient is φ = 80496000.

The previous prime is 201241969. The next prime is 201242017. The reversal of 201242000 is 242102.

It can be written as a sum of positive squares in 4 ways, for example, as 283024 + 200958976 = 532^2 + 14176^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 48311 + ... + 52310.

Almost surely, 2^201242000 is an apocalyptic number.

201242000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201242000 is an abundant number, since it is smaller than the sum of its proper divisors (285365992).

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

201242000 is a wasteful number, since it uses less digits than its factorization.

201242000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100644 (or 100628 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 201242000 is about 14185.9789933582. The cubic root of 201242000 is about 586.0115937709.

Adding to 201242000 its reverse (242102), we get a palindrome (201484102).

The spelling of 201242000 in words is "two hundred one million, two hundred forty-two thousand".