201115667 has 8 divisors (see below), whose sum is σ = 208243440. Its totient is φ = 194000800.

The previous prime is 201115613. The next prime is 201115669. The reversal of 201115667 is 766511102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201115667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201115669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37292 + ... + 42342.

It is an arithmetic number, because the mean of its divisors is an integer number (26030430).

Almost surely, 2^201115667 is an apocalyptic number.

201115667 is a deficient number, since it is larger than the sum of its proper divisors (7127773).

201115667 is a wasteful number, since it uses less digits than its factorization.

201115667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 201115667 is about 14181.5255526336. The cubic root of 201115667 is about 585.8889419391. Note that the first 3 decimals are identical.

Adding to 201115667 its reverse (766511102), we get a palindrome (967626769).

The spelling of 201115667 in words is "two hundred one million, one hundred fifteen thousand, six hundred sixty-seven".