188020147 has 16 divisors (see below), whose sum is σ = 224916480. Its totient is φ = 153676512.

The previous prime is 188020127. The next prime is 188020159. The reversal of 188020147 is 741020881.

It is a cyclic number.

It is not a de Polignac number, because 188020147 - 2¹¹ = 188018099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56173 + ... + 59425.

It is an arithmetic number, because the mean of its divisors is an integer number (14057280).

Almost surely, 2^188020147 is an apocalyptic number.

188020147 is a deficient number, since it is larger than the sum of its proper divisors (36896333).

188020147 is a wasteful number, since it uses less digits than its factorization.

188020147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 188020147 is about 13712.0438666159. The cubic root of 188020147 is about 572.8858945550.

The spelling of 188020147 in words is "one hundred eighty-eight million, twenty thousand, one hundred forty-seven".