133843001 has 4 divisors (see below), whose sum is σ = 133874292. Its totient is φ = 133811712.

The previous prime is 133842979. The next prime is 133843009. The reversal of 133843001 is 100348331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100348331 = 17 ⋅5902843.

It can be written as a sum of positive squares in 2 ways, for example, as 60295225 + 73547776 = 7765^2 + 8576^2 .

It is a cyclic number.

It is not a de Polignac number, because 133843001 - 2²² = 129648697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133843009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7976 + ... + 18201.

It is an arithmetic number, because the mean of its divisors is an integer number (33468573).

Almost surely, 2^133843001 is an apocalyptic number.

It is an amenable number.

133843001 is a deficient number, since it is larger than the sum of its proper divisors (31291).

133843001 is an equidigital number, since it uses as much as digits as its factorization.

133843001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31290.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 133843001 is about 11569.0535913704. The cubic root of 133843001 is about 511.5230658473.

The spelling of 133843001 in words is "one hundred thirty-three million, eight hundred forty-three thousand, one".