133413468 has 12 divisors (see below), whose sum is σ = 311298120. Its totient is φ = 44471152.

The previous prime is 133413463. The next prime is 133413487. The reversal of 133413468 is 864314331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133413463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5558883 + ... + 5558906.

It is an arithmetic number, because the mean of its divisors is an integer number (25941510).

Almost surely, 2^133413468 is an apocalyptic number.

It is an amenable number.

133413468 is an abundant number, since it is smaller than the sum of its proper divisors (177884652).

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

133413468 is a wasteful number, since it uses less digits than its factorization.

133413468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11117796 (or 11117794 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 133413468 is about 11550.4747954359. The cubic root of 133413468 is about 510.9752810170.

Adding to 133413468 its reverse (864314331), we get a palindrome (997727799).

The spelling of 133413468 in words is "one hundred thirty-three million, four hundred thirteen thousand, four hundred sixty-eight".