149271273 has 12 divisors (see below), whose sum is σ = 215836608. Its totient is φ = 99411480.

The previous prime is 149271193. The next prime is 149271289. The reversal of 149271273 is 372172941.

It is a de Polignac number, because none of the positive numbers 2^k-149271273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149271673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1236 + ... + 17322.

It is an arithmetic number, because the mean of its divisors is an integer number (17986384).

Almost surely, 2^149271273 is an apocalyptic number.

It is an amenable number.

149271273 is a deficient number, since it is larger than the sum of its proper divisors (66565335).

149271273 is a wasteful number, since it uses less digits than its factorization.

149271273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17124 (or 17121 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 149271273 is about 12217.6623377797. The cubic root of 149271273 is about 530.4674563407.

The spelling of 149271273 in words is "one hundred forty-nine million, two hundred seventy-one thousand, two hundred seventy-three".