149047271 has 2 divisors, whose sum is σ = 149047272. Its totient is φ = 149047270.

The previous prime is 149047237. The next prime is 149047273. The reversal of 149047271 is 172740941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149047271 is a prime.

Together with 149047273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149047273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74523635 + 74523636.

It is an arithmetic number, because the mean of its divisors is an integer number (74523636).

Almost surely, 2^149047271 is an apocalyptic number.

149047271 is a deficient number, since it is larger than the sum of its proper divisors (1).

149047271 is an equidigital number, since it uses as much as digits as its factorization.

149047271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 149047271 is about 12208.4917577889. The cubic root of 149047271 is about 530.2019771308.

The spelling of 149047271 in words is "one hundred forty-nine million, forty-seven thousand, two hundred seventy-one".