188142913 has 8 divisors (see below), whose sum is σ = 216340928. Its totient is φ = 160275024.

The previous prime is 188142881. The next prime is 188142947. The reversal of 188142913 is 319241881.

188142913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 188142913 - 2⁵ = 188142881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188142953) 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, 81306 + ... + 83587.

It is an arithmetic number, because the mean of its divisors is an integer number (27042616).

Almost surely, 2^188142913 is an apocalyptic number.

It is an amenable number.

188142913 is a deficient number, since it is larger than the sum of its proper divisors (28198015).

188142913 is a wasteful number, since it uses less digits than its factorization.

188142913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165063.

The product of its digits is 13824, while the sum is 37.

The square root of 188142913 is about 13716.5197116470. The cubic root of 188142913 is about 573.0105542596.

The spelling of 188142913 in words is "one hundred eighty-eight million, one hundred forty-two thousand, nine hundred thirteen".