16117845 has 8 divisors (see below), whose sum is σ = 25788576. Its totient is φ = 8596176.

The previous prime is 16117841. The next prime is 16117859. The reversal of 16117845 is 54871161.

It is a happy number.

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

It is not a de Polignac number, because 16117845 - 2² = 16117841 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16117841) 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, 537247 + ... + 537276.

It is an arithmetic number, because the mean of its divisors is an integer number (3223572).

Almost surely, 2^16117845 is an apocalyptic number.

16117845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16117845 is a deficient number, since it is larger than the sum of its proper divisors (9670731).

16117845 is a wasteful number, since it uses less digits than its factorization.

16117845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074531.

The product of its digits is 6720, while the sum is 33.

The square root of 16117845 is about 4014.7036005165. The cubic root of 16117845 is about 252.6013448033.

The spelling of 16117845 in words is "sixteen million, one hundred seventeen thousand, eight hundred forty-five".