188740147 has 2 divisors, whose sum is σ = 188740148. Its totient is φ = 188740146.

The previous prime is 188740117. The next prime is 188740151. The reversal of 188740147 is 741047881.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188740147 is a prime.

It is not a weakly prime, because it can be changed into another prime (188740117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94370073 + 94370074.

It is an arithmetic number, because the mean of its divisors is an integer number (94370074).

Almost surely, 2^188740147 is an apocalyptic number.

188740147 is a deficient number, since it is larger than the sum of its proper divisors (1).

188740147 is an equidigital number, since it uses as much as digits as its factorization.

188740147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 188740147 is about 13738.2730719694. The cubic root of 188740147 is about 573.6162284348.

The spelling of 188740147 in words is "one hundred eighty-eight million, seven hundred forty thousand, one hundred forty-seven".