188340147 has 20 divisors (see below), whose sum is σ = 284259976. Its totient is φ = 124260480.

The previous prime is 188340133. The next prime is 188340157. The reversal of 188340147 is 741043881.

It is not a de Polignac number, because 188340147 - 2¹² = 188336051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188340157) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4129 + ... + 19842.

Almost surely, 2^188340147 is an apocalyptic number.

188340147 is a deficient number, since it is larger than the sum of its proper divisors (95919829).

188340147 is an equidigital number, since it uses as much as digits as its factorization.

188340147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24080 (or 24071 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 188340147 is about 13723.7074801236. The cubic root of 188340147 is about 573.2107171608.

The spelling of 188340147 in words is "one hundred eighty-eight million, three hundred forty thousand, one hundred forty-seven".