133210001 has 4 divisors (see below), whose sum is σ = 136307952. Its totient is φ = 130112052.

The previous prime is 133209959. The next prime is 133210013. The reversal of 133210001 is 100012331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100012331 = 3323 ⋅30097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133210201) 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, 1548911 + ... + 1548996.

It is an arithmetic number, because the mean of its divisors is an integer number (34076988).

Almost surely, 2^133210001 is an apocalyptic number.

It is an amenable number.

133210001 is a deficient number, since it is larger than the sum of its proper divisors (3097951).

133210001 is an equidigital number, since it uses as much as digits as its factorization.

133210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097950.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 133210001 is about 11541.6637015640. The cubic root of 133210001 is about 510.7153884525.

Adding to 133210001 its reverse (100012331), we get a palindrome (233222332).

The spelling of 133210001 in words is "one hundred thirty-three million, two hundred ten thousand, one".