188972071 has 8 divisors (see below), whose sum is σ = 197604864. Its totient is φ = 180374040.

The previous prime is 188972039. The next prime is 188972089. The reversal of 188972071 is 170279881.

It is a happy number.

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 188972071 - 2⁵ = 188972039 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 (188972171) 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, 2766 + ... + 19636.

It is an arithmetic number, because the mean of its divisors is an integer number (24700608).

Almost surely, 2^188972071 is an apocalyptic number.

188972071 is a deficient number, since it is larger than the sum of its proper divisors (8632793).

188972071 is a wasteful number, since it uses less digits than its factorization.

188972071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381.

The product of its (nonzero) digits is 56448, while the sum is 43.

The square root of 188972071 is about 13746.7112794297. The cubic root of 188972071 is about 573.8510855794.

The spelling of 188972071 in words is "one hundred eighty-eight million, nine hundred seventy-two thousand, seventy-one".