149271 has 4 divisors (see below), whose sum is σ = 199032. Its totient is φ = 99512.

The previous prime is 149269. The next prime is 149287. The reversal of 149271 is 172941.

149271 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 a cyclic number.

It is not a de Polignac number, because 149271 - 2¹ = 149269 is a prime.

It is an Ulam number.

It is a D-number.

149271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149251) 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, 24876 + ... + 24881.

It is an arithmetic number, because the mean of its divisors is an integer number (49758).

2¹⁴⁹²⁷¹ is an apocalyptic number.

149271 is a deficient number, since it is larger than the sum of its proper divisors (49761).

149271 is an equidigital number, since it uses as much as digits as its factorization.

149271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49760.

The product of its digits is 504, while the sum is 24.

The square root of 149271 is about 386.3560534015. The cubic root of 149271 is about 53.0467132953.

The spelling of 149271 in words is "one hundred forty-nine thousand, two hundred seventy-one".