133712408 has 16 divisors (see below), whose sum is σ = 254961000. Its totient is φ = 65722816.

The previous prime is 133712401. The next prime is 133712431. The reversal of 133712408 is 804217331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133712401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141173 + ... + 142116.

Almost surely, 2^133712408 is an apocalyptic number.

It is an amenable number.

133712408 is a deficient number, since it is larger than the sum of its proper divisors (121248592).

133712408 is a wasteful number, since it uses less digits than its factorization.

133712408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283354 (or 283350 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 133712408 is about 11563.4081481197. The cubic root of 133712408 is about 511.3566443200.

Adding to 133712408 its reverse (804217331), we get a palindrome (937929739).

The spelling of 133712408 in words is "one hundred thirty-three million, seven hundred twelve thousand, four hundred eight".