133601005 has 8 divisors (see below), whose sum is σ = 161545824. Its totient is φ = 106064400.

The previous prime is 133601003. The next prime is 133601021. The reversal of 133601005 is 500106331.

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

It is not a de Polignac number, because 133601005 - 2¹ = 133601003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133601003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101331 + ... + 102640.

It is an arithmetic number, because the mean of its divisors is an integer number (20193228).

Almost surely, 2^133601005 is an apocalyptic number.

It is an amenable number.

133601005 is a deficient number, since it is larger than the sum of its proper divisors (27944819).

133601005 is a wasteful number, since it uses less digits than its factorization.

133601005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204107.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 133601005 is about 11558.5900956821. The cubic root of 133601005 is about 511.2145919528.

Adding to 133601005 its reverse (500106331), we get a palindrome (633707336).

It can be divided in two parts, 13360 and 1005, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 133601005 in words is "one hundred thirty-three million, six hundred one thousand, five".