133212396 has 12 divisors (see below), whose sum is σ = 310828952. Its totient is φ = 44404128.

The previous prime is 133212319. The next prime is 133212397. The reversal of 133212396 is 693212331.

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

It is not an unprimeable number, because it can be changed into a prime (133212397) 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, 5550505 + ... + 5550528.

Almost surely, 2^133212396 is an apocalyptic number.

It is an amenable number.

133212396 is an abundant number, since it is smaller than the sum of its proper divisors (177616556).

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

133212396 is a wasteful number, since it uses less digits than its factorization.

133212396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101040 (or 11101038 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

The square root of 133212396 is about 11541.7674556369. The cubic root of 133212396 is about 510.7184491737.

The spelling of 133212396 in words is "one hundred thirty-three million, two hundred twelve thousand, three hundred ninety-six".