149358171 has 4 divisors (see below), whose sum is σ = 199144232. Its totient is φ = 99572112.

The previous prime is 149358161. The next prime is 149358173. The reversal of 149358171 is 171853941.

149358171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 149358171 - 2⁷ = 149358043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149358173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24893026 + ... + 24893031.

It is an arithmetic number, because the mean of its divisors is an integer number (49786058).

Almost surely, 2^149358171 is an apocalyptic number.

149358171 is a deficient number, since it is larger than the sum of its proper divisors (49786061).

149358171 is an equidigital number, since it uses as much as digits as its factorization.

149358171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49786060.

The product of its digits is 30240, while the sum is 39.

The square root of 149358171 is about 12221.2180653157. The cubic root of 149358171 is about 530.5703732605.

The spelling of 149358171 in words is "one hundred forty-nine million, three hundred fifty-eight thousand, one hundred seventy-one".