149050217 has 2 divisors, whose sum is σ = 149050218. Its totient is φ = 149050216.

The previous prime is 149050147. The next prime is 149050241. The reversal of 149050217 is 712050941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132273001 + 16777216 = 11501^2 + 4096^2 .

It is a cyclic number.

It is not a de Polignac number, because 149050217 - 2¹⁰ = 149049193 is a prime.

It is a Chen prime.

It is equal to p_8394014 and since 149050217 and 8394014 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149050217.

It is not a weakly prime, because it can be changed into another prime (149050247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74525108 + 74525109.

It is an arithmetic number, because the mean of its divisors is an integer number (74525109).

Almost surely, 2^149050217 is an apocalyptic number.

It is an amenable number.

149050217 is a deficient number, since it is larger than the sum of its proper divisors (1).

149050217 is an equidigital number, since it uses as much as digits as its factorization.

149050217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 149050217 is about 12208.6124109171. The cubic root of 149050217 is about 530.2054703508.

The spelling of 149050217 in words is "one hundred forty-nine million, fifty thousand, two hundred seventeen".