133201405 has 8 divisors (see below), whose sum is σ = 161638200. Its totient is φ = 105363456.

The previous prime is 133201403. The next prime is 133201417. The reversal of 133201405 is 504102331.

It can be written as a sum of positive squares in 4 ways, for example, as 26327161 + 106874244 = 5131^2 + 10338^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133201405 - 2¹ = 133201403 is a prime.

It is a super-2 number, since 2×133201405² = 35485228587948050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133201403) 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, 149220 + ... + 150109.

It is an arithmetic number, because the mean of its divisors is an integer number (20204775).

Almost surely, 2^133201405 is an apocalyptic number.

It is an amenable number.

133201405 is a deficient number, since it is larger than the sum of its proper divisors (28436795).

133201405 is an equidigital number, since it uses as much as digits as its factorization.

133201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299423.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 133201405 is about 11541.2913055689. The cubic root of 133201405 is about 510.7044027811.

Adding to 133201405 its reverse (504102331), we get a palindrome (637303736).

The spelling of 133201405 in words is "one hundred thirty-three million, two hundred one thousand, four hundred five".