133509654 has 32 divisors (see below), whose sum is σ = 298045440. Its totient is φ = 44299656.

The previous prime is 133509647. The next prime is 133509659. The reversal of 133509654 is 456905331.

It is a super-2 number, since 2×133509654² = 35649655422399432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133509659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6499 + ... + 17585.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^133509654 is an apocalyptic number.

133509654 is an abundant number, since it is smaller than the sum of its proper divisors (164535786).

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

133509654 is a wasteful number, since it uses less digits than its factorization.

133509654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321 (or 11315 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 133509654 is about 11554.6377701770. The cubic root of 133509654 is about 511.0980493862.

The spelling of 133509654 in words is "one hundred thirty-three million, five hundred nine thousand, six hundred fifty-four".