149111177 has 2 divisors, whose sum is σ = 149111178. Its totient is φ = 149111176.

The previous prime is 149111173. The next prime is 149111189. The reversal of 149111177 is 771111941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77810041 + 71301136 = 8821^2 + 8444^2 .

It is a cyclic number.

It is not a de Polignac number, because 149111177 - 2² = 149111173 is a prime.

It is not a weakly prime, because it can be changed into another prime (149111173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74555588 + 74555589.

It is an arithmetic number, because the mean of its divisors is an integer number (74555589).

Almost surely, 2^149111177 is an apocalyptic number.

It is an amenable number.

149111177 is a deficient number, since it is larger than the sum of its proper divisors (1).

149111177 is an equidigital number, since it uses as much as digits as its factorization.

149111177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 32.

The square root of 149111177 is about 12211.1087539175. The cubic root of 149111177 is about 530.2777433533.

The spelling of 149111177 in words is "one hundred forty-nine million, one hundred eleven thousand, one hundred seventy-seven".