149447224 has 16 divisors (see below), whose sum is σ = 280719720. Its totient is φ = 74588640.

The previous prime is 149447219. The next prime is 149447251. The reversal of 149447224 is 422744941.

It is a happy number.

It is a super-2 number, since 2×149447224² = 44668945522612352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12087 + ... + 21094.

Almost surely, 2^149447224 is an apocalyptic number.

It is an amenable number.

149447224 is a deficient number, since it is larger than the sum of its proper divisors (131272496).

149447224 is a wasteful number, since it uses less digits than its factorization.

149447224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33750 (or 33746 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 149447224 is about 12224.8608990041. The cubic root of 149447224 is about 530.6758010290.

The spelling of 149447224 in words is "one hundred forty-nine million, four hundred forty-seven thousand, two hundred twenty-four".