133010621 has 8 divisors (see below), whose sum is σ = 140145600. Its totient is φ = 125889120.

The previous prime is 133010609. The next prime is 133010623. The reversal of 133010621 is 126010331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133010621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133010621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133010623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21776 + ... + 27206.

It is an arithmetic number, because the mean of its divisors is an integer number (17518200).

Almost surely, 2^133010621 is an apocalyptic number.

It is an amenable number.

133010621 is a deficient number, since it is larger than the sum of its proper divisors (7134979).

133010621 is a wasteful number, since it uses less digits than its factorization.

133010621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 133010621 is about 11533.0230642273. The cubic root of 133010621 is about 510.4604594481.

Adding to 133010621 its reverse (126010331), we get a palindrome (259020952).

The spelling of 133010621 in words is "one hundred thirty-three million, ten thousand, six hundred twenty-one".