133146633 has 8 divisors (see below), whose sum is σ = 177585408. Its totient is φ = 88736144.

The previous prime is 133146617. The next prime is 133146659. The reversal of 133146633 is 336641331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133146633 - 2⁴ = 133146617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133146633.

It is not an unprimeable number, because it can be changed into a prime (133145633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9391 + ... + 18827.

It is an arithmetic number, because the mean of its divisors is an integer number (22198176).

Almost surely, 2^133146633 is an apocalyptic number.

It is an amenable number.

133146633 is a deficient number, since it is larger than the sum of its proper divisors (44438775).

133146633 is an equidigital number, since it uses as much as digits as its factorization.

133146633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14143.

The product of its digits is 11664, while the sum is 30.

The square root of 133146633 is about 11538.9181901944. The cubic root of 133146633 is about 510.6343931680.

Adding to 133146633 its reverse (336641331), we get a palindrome (469787964).

The spelling of 133146633 in words is "one hundred thirty-three million, one hundred forty-six thousand, six hundred thirty-three".