133890326 has 4 divisors (see below), whose sum is σ = 200835492. Its totient is φ = 66945162.

The previous prime is 133890313. The next prime is 133890343. The reversal of 133890326 is 623098331.

It is a semiprime because it is the product of two primes.

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, 33472580 + ... + 33472583.

It is an arithmetic number, because the mean of its divisors is an integer number (50208873).

Almost surely, 2^133890326 is an apocalyptic number.

133890326 is a deficient number, since it is larger than the sum of its proper divisors (66945166).

133890326 is an equidigital number, since it uses as much as digits as its factorization.

133890326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66945165.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 133890326 is about 11571.0987378036. The cubic root of 133890326 is about 511.5833478600.

The spelling of 133890326 in words is "one hundred thirty-three million, eight hundred ninety thousand, three hundred twenty-six".