133149212 has 24 divisors (see below), whose sum is σ = 268222080. Its totient is φ = 56651760.

The previous prime is 133149187. The next prime is 133149223. The reversal of 133149212 is 212941331.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 13214 + ... + 20997.

It is an arithmetic number, because the mean of its divisors is an integer number (11175920).

Almost surely, 2^133149212 is an apocalyptic number.

It is an amenable number.

133149212 is an abundant number, since it is smaller than the sum of its proper divisors (135072868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133149212 is a wasteful number, since it uses less digits than its factorization.

133149212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34361 (or 34359 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 133149212 is about 11539.0299418972. The cubic root of 133149212 is about 510.6376900785.

The spelling of 133149212 in words is "one hundred thirty-three million, one hundred forty-nine thousand, two hundred twelve".