133649852 has 36 divisors (see below), whose sum is σ = 288084384. Its totient is φ = 53907840.

The previous prime is 133649851. The next prime is 133649881. The reversal of 133649852 is 258946331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133649851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16724 + ... + 23387.

It is an arithmetic number, because the mean of its divisors is an integer number (8002344).

Almost surely, 2^133649852 is an apocalyptic number.

It is an amenable number.

133649852 is an abundant number, since it is smaller than the sum of its proper divisors (154434532).

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

133649852 is a wasteful number, since it uses less digits than its factorization.

133649852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40146 (or 40137 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 133649852 is about 11560.7029198055. The cubic root of 133649852 is about 511.2768875333.

The spelling of 133649852 in words is "one hundred thirty-three million, six hundred forty-nine thousand, eight hundred fifty-two".