133326641 has 16 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 110680128.

The previous prime is 133326637. The next prime is 133326647. The reversal of 133326641 is 146623331.

It is a cyclic number.

It is not a de Polignac number, because 133326641 - 2² = 133326637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133326647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27035 + ... + 31583.

It is an arithmetic number, because the mean of its divisors is an integer number (9828000).

Almost surely, 2^133326641 is an apocalyptic number.

It is an amenable number.

133326641 is a deficient number, since it is larger than the sum of its proper divisors (23921359).

133326641 is an equidigital number, since it uses as much as digits as its factorization.

133326641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688.

The product of its digits is 7776, while the sum is 29.

The square root of 133326641 is about 11546.7155936223. The cubic root of 133326641 is about 510.8644074558.

Adding to 133326641 its reverse (146623331), we get a palindrome (279949972).

The spelling of 133326641 in words is "one hundred thirty-three million, three hundred twenty-six thousand, six hundred forty-one".