133420106 has 4 divisors (see below), whose sum is σ = 200130162. Its totient is φ = 66710052.

The previous prime is 133420087. The next prime is 133420121. The reversal of 133420106 is 601024331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601024331 = 83 ⋅7241257.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 61763881 = 8465^2 + 7859^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33355025 + ... + 33355028.

Almost surely, 2^133420106 is an apocalyptic number.

133420106 is a deficient number, since it is larger than the sum of its proper divisors (66710056).

133420106 is an equidigital number, since it uses as much as digits as its factorization.

133420106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66710055.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133420106 is about 11550.7621393569. The cubic root of 133420106 is about 510.9837554179.

Adding to 133420106 its reverse (601024331), we get a palindrome (734444437).

The spelling of 133420106 in words is "one hundred thirty-three million, four hundred twenty thousand, one hundred six".