133402208 has 24 divisors (see below), whose sum is σ = 274056048. Its totient is φ = 63800704.

The previous prime is 133402183. The next prime is 133402223. The reversal of 133402208 is 802204331.

It is a super-2 number, since 2×133402208² = 35592298198550528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89891 + ... + 91362.

It is an arithmetic number, because the mean of its divisors is an integer number (11419002).

Almost surely, 2^133402208 is an apocalyptic number.

It is an amenable number.

133402208 is an abundant number, since it is smaller than the sum of its proper divisors (140653840).

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

133402208 is a wasteful number, since it uses less digits than its factorization.

133402208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181286 (or 181278 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 133402208 is about 11549.9873593004. The cubic root of 133402208 is about 510.9609052981.

Adding to 133402208 its reverse (802204331), we get a palindrome (935606539).

The spelling of 133402208 in words is "one hundred thirty-three million, four hundred two thousand, two hundred eight".