133303001 has 16 divisors (see below), whose sum is σ = 152400528. Its totient is φ = 115507200.

The previous prime is 133302991. The next prime is 133303019. The reversal of 133303001 is 100303331.

It can be written as a sum of positive squares in 8 ways, for example, as 7974976 + 125328025 = 2824^2 + 11195^2 .

It is a cyclic number.

It is not a de Polignac number, because 133303001 - 2¹⁸ = 133040857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133303021) 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, 141191 + ... + 142131.

It is an arithmetic number, because the mean of its divisors is an integer number (9525033).

Almost surely, 2^133303001 is an apocalyptic number.

It is an amenable number.

133303001 is a deficient number, since it is larger than the sum of its proper divisors (19097527).

133303001 is a wasteful number, since it uses less digits than its factorization.

133303001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 133303001 is about 11545.6918805241. The cubic root of 133303001 is about 510.8342120691.

Adding to 133303001 its reverse (100303331), we get a palindrome (233606332).

The spelling of 133303001 in words is "one hundred thirty-three million, three hundred three thousand, one".