133536642 has 16 divisors (see below), whose sum is σ = 269570592. Its totient is φ = 44096000.

The previous prime is 133536527. The next prime is 133536673. The reversal of 133536642 is 246635331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103359 + ... + 104642.

It is an arithmetic number, because the mean of its divisors is an integer number (16848162).

Almost surely, 2^133536642 is an apocalyptic number.

133536642 is an abundant number, since it is smaller than the sum of its proper divisors (136033950).

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

133536642 is a wasteful number, since it uses less digits than its factorization.

133536642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208113.

The product of its digits is 38880, while the sum is 33.

The square root of 133536642 is about 11555.8055539196. The cubic root of 133536642 is about 511.1324853100.

The spelling of 133536642 in words is "one hundred thirty-three million, five hundred thirty-six thousand, six hundred forty-two".