149955271 has 2 divisors, whose sum is σ = 149955272. Its totient is φ = 149955270.

The previous prime is 149955269. The next prime is 149955287. The reversal of 149955271 is 172559941.

It is a weak prime.

It is an emirp because it is prime and its reverse (172559941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149955271 - 2¹ = 149955269 is a prime.

Together with 149955269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149955251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74977635 + 74977636.

It is an arithmetic number, because the mean of its divisors is an integer number (74977636).

Almost surely, 2^149955271 is an apocalyptic number.

149955271 is a deficient number, since it is larger than the sum of its proper divisors (1).

149955271 is an equidigital number, since it uses as much as digits as its factorization.

149955271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 43.

The square root of 149955271 is about 12245.6225239879. The cubic root of 149955271 is about 531.2764663908.

The spelling of 149955271 in words is "one hundred forty-nine million, nine hundred fifty-five thousand, two hundred seventy-one".