149750291 has 2 divisors, whose sum is σ = 149750292. Its totient is φ = 149750290.

The previous prime is 149750273. The next prime is 149750317. The reversal of 149750291 is 192057941.

It is a weak prime.

It is an emirp because it is prime and its reverse (192057941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149750291 - 2¹⁸ = 149488147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (149750231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74875145 + 74875146.

It is an arithmetic number, because the mean of its divisors is an integer number (74875146).

Almost surely, 2^149750291 is an apocalyptic number.

149750291 is a deficient number, since it is larger than the sum of its proper divisors (1).

149750291 is an equidigital number, since it uses as much as digits as its factorization.

149750291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 149750291 is about 12237.2501404523. The cubic root of 149750291 is about 531.0342814879.

The spelling of 149750291 in words is "one hundred forty-nine million, seven hundred fifty thousand, two hundred ninety-one".