201116451 has 16 divisors (see below), whose sum is σ = 275125248. Its totient is φ = 130634400.

The previous prime is 201116449. The next prime is 201116453. The reversal of 201116451 is 154611102.

It is an interprime number because it is at equal distance from previous prime (201116449) and next prime (201116453).

It is not a de Polignac number, because 201116451 - 2¹ = 201116449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201116453) 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, 14446 + ... + 24716.

It is an arithmetic number, because the mean of its divisors is an integer number (17195328).

Almost surely, 2^201116451 is an apocalyptic number.

201116451 is a deficient number, since it is larger than the sum of its proper divisors (74008797).

201116451 is a wasteful number, since it uses less digits than its factorization.

201116451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10442.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 201116451 is about 14181.5531942027. The cubic root of 201116451 is about 585.8897032528.

Adding to 201116451 its reverse (154611102), we get a palindrome (355727553).

It can be divided in two parts, 20111 and 6451, that added together give a palindrome (26562).

The spelling of 201116451 in words is "two hundred one million, one hundred sixteen thousand, four hundred fifty-one".