16118461 has 8 divisors (see below), whose sum is σ = 16800120. Its totient is φ = 15445248.

The previous prime is 16118447. The next prime is 16118477. The reversal of 16118461 is 16481161.

It can be written as a sum of positive squares in 4 ways, for example, as 3115225 + 13003236 = 1765^2 + 3606^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16118461 - 2⁵ = 16118429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16118761) 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 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 6001.

It is an arithmetic number, because the mean of its divisors is an integer number (2100015).

Almost surely, 2^16118461 is an apocalyptic number.

It is an amenable number.

16118461 is a deficient number, since it is larger than the sum of its proper divisors (681659).

16118461 is a wasteful number, since it uses less digits than its factorization.

16118461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223.

The product of its digits is 1152, while the sum is 28.

The square root of 16118461 is about 4014.7803177758. The cubic root of 16118461 is about 252.6045627779.

The spelling of 16118461 in words is "sixteen million, one hundred eighteen thousand, four hundred sixty-one".