149047273 has 2 divisors, whose sum is σ = 149047274. Its totient is φ = 149047272.

The previous prime is 149047271. The next prime is 149047309. The reversal of 149047273 is 372740941.

149047273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105842944 + 43204329 = 10288^2 + 6573^2 .

It is an emirp because it is prime and its reverse (372740941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149047273 - 2¹ = 149047271 is a prime.

Together with 149047271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (149047271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74523636 + 74523637.

It is an arithmetic number, because the mean of its divisors is an integer number (74523637).

Almost surely, 2^149047273 is an apocalyptic number.

It is an amenable number.

149047273 is a deficient number, since it is larger than the sum of its proper divisors (1).

149047273 is an equidigital number, since it uses as much as digits as its factorization.

149047273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 149047273 is about 12208.4918396991. The cubic root of 149047273 is about 530.2019795023.

The spelling of 149047273 in words is "one hundred forty-nine million, forty-seven thousand, two hundred seventy-three".