188138714 has 4 divisors (see below), whose sum is σ = 282208074. Its totient is φ = 94069356.

The previous prime is 188138651. The next prime is 188138723. The reversal of 188138714 is 417831881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 417831881 = 5387 ⋅77563.

It can be written as a sum of positive squares in only one way, i.e., 164275489 + 23863225 = 12817^2 + 4885^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47034677 + ... + 47034680.

Almost surely, 2^188138714 is an apocalyptic number.

188138714 is a deficient number, since it is larger than the sum of its proper divisors (94069360).

188138714 is an equidigital number, since it uses as much as digits as its factorization.

188138714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94069359.

The product of its digits is 43008, while the sum is 41.

The square root of 188138714 is about 13716.3666471847. The cubic root of 188138714 is about 573.0062913845.

The spelling of 188138714 in words is "one hundred eighty-eight million, one hundred thirty-eight thousand, seven hundred fourteen".