149224247 has 2 divisors, whose sum is σ = 149224248. Its totient is φ = 149224246.

The previous prime is 149224217. The next prime is 149224259. The reversal of 149224247 is 742422941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149224247 - 2¹⁰ = 149223223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149224217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74612123 + 74612124.

It is an arithmetic number, because the mean of its divisors is an integer number (74612124).

Almost surely, 2^149224247 is an apocalyptic number.

149224247 is a deficient number, since it is larger than the sum of its proper divisors (1).

149224247 is an equidigital number, since it uses as much as digits as its factorization.

149224247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 149224247 is about 12215.7376772752. The cubic root of 149224247 is about 530.4117448338.

The spelling of 149224247 in words is "one hundred forty-nine million, two hundred twenty-four thousand, two hundred forty-seven".