149145271 has 8 divisors (see below), whose sum is σ = 169778304. Its totient is φ = 129691320.

The previous prime is 149145259. The next prime is 149145313. The reversal of 149145271 is 172541941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149145271 - 2⁵ = 149145239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149145071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294501 + ... + 295006.

It is an arithmetic number, because the mean of its divisors is an integer number (21222288).

Almost surely, 2^149145271 is an apocalyptic number.

149145271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149145271 is a deficient number, since it is larger than the sum of its proper divisors (20633033).

149145271 is a wasteful number, since it uses less digits than its factorization.

149145271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589541.

The product of its digits is 10080, while the sum is 34.

The square root of 149145271 is about 12212.5046980544. The cubic root of 149145271 is about 530.3181559545.

The spelling of 149145271 in words is "one hundred forty-nine million, one hundred forty-five thousand, two hundred seventy-one".