149525171 has 2 divisors, whose sum is σ = 149525172. Its totient is φ = 149525170.

The previous prime is 149525161. The next prime is 149525179. The reversal of 149525171 is 171525941.

It is a happy number.

149525171 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 a cyclic number.

It is not a de Polignac number, because 149525171 - 2⁶ = 149525107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (149525179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74762585 + 74762586.

It is an arithmetic number, because the mean of its divisors is an integer number (74762586).

Almost surely, 2^149525171 is an apocalyptic number.

149525171 is a deficient number, since it is larger than the sum of its proper divisors (1).

149525171 is an equidigital number, since it uses as much as digits as its factorization.

149525171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 149525171 is about 12228.0485360502. The cubic root of 149525171 is about 530.7680462961.

The spelling of 149525171 in words is "one hundred forty-nine million, five hundred twenty-five thousand, one hundred seventy-one".