149215828 has 12 divisors (see below), whose sum is σ = 261220960. Its totient is φ = 74581272.

The previous prime is 149215819. The next prime is 149215841. The reversal of 149215828 is 828512941.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 11353 + ... + 20671.

Almost surely, 2^149215828 is an apocalyptic number.

It is an amenable number.

149215828 is a deficient number, since it is larger than the sum of its proper divisors (112005132).

149215828 is a wasteful number, since it uses less digits than its factorization.

149215828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13326 (or 13324 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 149215828 is about 12215.3930759513. The cubic root of 149215828 is about 530.4017696442.

The spelling of 149215828 in words is "one hundred forty-nine million, two hundred fifteen thousand, eight hundred twenty-eight".