188143814 has 12 divisors (see below), whose sum is σ = 297852084. Its totient is φ = 89120412.

The previous prime is 188143807. The next prime is 188143843. The reversal of 188143814 is 418341881.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129572 + ... + 131015.

It is an arithmetic number, because the mean of its divisors is an integer number (24821007).

Almost surely, 2^188143814 is an apocalyptic number.

188143814 is a deficient number, since it is larger than the sum of its proper divisors (109708270).

188143814 is a wasteful number, since it uses less digits than its factorization.

188143814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260627 (or 260608 counting only the distinct ones).

The product of its digits is 24576, while the sum is 38.

The square root of 188143814 is about 13716.5525552159. The cubic root of 188143814 is about 573.0114689573.

The spelling of 188143814 in words is "one hundred eighty-eight million, one hundred forty-three thousand, eight hundred fourteen".