133860005 has 8 divisors (see below), whose sum is σ = 162437400. Its totient is φ = 105884416.

The previous prime is 133859983. The next prime is 133860007. The reversal of 133860005 is 500068331.

It can be written as a sum of positive squares in 4 ways, for example, as 28058209 + 105801796 = 5297^2 + 10286^2 .

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 133860005 - 2⁶ = 133859941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133860007) 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, 149960 + ... + 150849.

It is an arithmetic number, because the mean of its divisors is an integer number (20304675).

Almost surely, 2^133860005 is an apocalyptic number.

It is an amenable number.

133860005 is a deficient number, since it is larger than the sum of its proper divisors (28577395).

133860005 is an equidigital number, since it uses as much as digits as its factorization.

133860005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300903.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 133860005 is about 11569.7884596046. The cubic root of 133860005 is about 511.5447269722.

The spelling of 133860005 in words is "one hundred thirty-three million, eight hundred sixty thousand, five".