133001312 has 12 divisors (see below), whose sum is σ = 261846396. Its totient is φ = 66500640.

The previous prime is 133001299. The next prime is 133001329. The reversal of 133001312 is 213100331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078114 + ... + 2078177.

It is an arithmetic number, because the mean of its divisors is an integer number (21820533).

Almost surely, 2^133001312 is an apocalyptic number.

It is an amenable number.

133001312 is a deficient number, since it is larger than the sum of its proper divisors (128845084).

133001312 is an equidigital number, since it uses as much as digits as its factorization.

133001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156301 (or 4156293 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 133001312 is about 11532.6194769445. The cubic root of 133001312 is about 510.4485506565.

Adding to 133001312 its reverse (213100331), we get a palindrome (346101643).

The spelling of 133001312 in words is "one hundred thirty-three million, one thousand, three hundred twelve".