149188147 has 2 divisors, whose sum is σ = 149188148. Its totient is φ = 149188146.

The previous prime is 149188121. The next prime is 149188153. The reversal of 149188147 is 741881941.

It is a happy number.

149188147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (741881941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149188147 - 2¹¹ = 149186099 is a prime.

It is not a weakly prime, because it can be changed into another prime (149188157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74594073 + 74594074.

It is an arithmetic number, because the mean of its divisors is an integer number (74594074).

Almost surely, 2^149188147 is an apocalyptic number.

149188147 is a deficient number, since it is larger than the sum of its proper divisors (1).

149188147 is an equidigital number, since it uses as much as digits as its factorization.

149188147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 43.

The square root of 149188147 is about 12214.2599857707. The cubic root of 149188147 is about 530.3689693719.

The spelling of 149188147 in words is "one hundred forty-nine million, one hundred eighty-eight thousand, one hundred forty-seven".