149837228 has 18 divisors (see below), whose sum is σ = 266610708. Its totient is φ = 73683120.

The previous prime is 149837197. The next prime is 149837239. The reversal of 149837228 is 822738941.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9851 + ... + 19917.

It is an arithmetic number, because the mean of its divisors is an integer number (14811706).

Almost surely, 2^149837228 is an apocalyptic number.

It is an amenable number.

149837228 is a deficient number, since it is larger than the sum of its proper divisors (116773480).

149837228 is a wasteful number, since it uses less digits than its factorization.

149837228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193 (or 10130 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 149837228 is about 12240.8017711259. The cubic root of 149837228 is about 531.1370249639.

The spelling of 149837228 in words is "one hundred forty-nine million, eight hundred thirty-seven thousand, two hundred twenty-eight".