201132406 has 32 divisors (see below), whose sum is σ = 325721088. Its totient is φ = 92810880.

The previous prime is 201132367. The next prime is 201132409. The reversal of 201132406 is 604231102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201132409) 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 in 15 ways as a sum of consecutive naturals, for example, 742051 + ... + 742321.

It is an arithmetic number, because the mean of its divisors is an integer number (10178784).

Almost surely, 2^201132406 is an apocalyptic number.

201132406 is a deficient number, since it is larger than the sum of its proper divisors (124588682).

201132406 is a wasteful number, since it uses less digits than its factorization.

201132406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 201132406 is about 14182.1157095830. The cubic root of 201132406 is about 585.9051961393.

Adding to 201132406 its reverse (604231102), we get a palindrome (805363508).

The spelling of 201132406 in words is "two hundred one million, one hundred thirty-two thousand, four hundred six".