133533332 has 12 divisors (see below), whose sum is σ = 234274740. Its totient is φ = 66597696.

The previous prime is 133533307. The next prime is 133533347. The reversal of 133533332 is 233335331.

It can be written as a sum of positive squares in 2 ways, for example, as 87347716 + 46185616 = 9346^2 + 6796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40457 + ... + 43632.

It is an arithmetic number, because the mean of its divisors is an integer number (19522895).

Almost surely, 2^133533332 is an apocalyptic number.

It is an amenable number.

133533332 is a deficient number, since it is larger than the sum of its proper divisors (100741408).

133533332 is a wasteful number, since it uses less digits than its factorization.

133533332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84490 (or 84488 counting only the distinct ones).

The product of its digits is 7290, while the sum is 26.

The square root of 133533332 is about 11555.6623349767. The cubic root of 133533332 is about 511.1282620934.

Adding to 133533332 its reverse (233335331), we get a palindrome (366868663).

The spelling of 133533332 in words is "one hundred thirty-three million, five hundred thirty-three thousand, three hundred thirty-two".