133338996 has 108 divisors (see below), whose sum is σ = 394938180. Its totient is φ = 37820160.

The previous prime is 133338971. The next prime is 133339021. The reversal of 133338996 is 699833331.

It is an interprime number because it is at equal distance from previous prime (133338971) and next prime (133339021).

It can be written as a sum of positive squares in 2 ways, for example, as 44036496 + 89302500 = 6636^2 + 9450^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 474376 + ... + 474656.

It is an arithmetic number, because the mean of its divisors is an integer number (3656835).

Almost surely, 2^133338996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133338996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197469090).

133338996 is an abundant number, since it is smaller than the sum of its proper divisors (261599184).

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

133338996 is a wasteful number, since it uses less digits than its factorization.

133338996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 562 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 133338996 is about 11547.2505818485. The cubic root of 133338996 is about 510.8801870848.

The spelling of 133338996 in words is "one hundred thirty-three million, three hundred thirty-eight thousand, nine hundred ninety-six".