133144342 has 4 divisors (see below), whose sum is σ = 199716516. Its totient is φ = 66572170.

The previous prime is 133144327. The next prime is 133144351. The reversal of 133144342 is 243441331.

133144342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243441331 = 7 ⋅34777333.

It is a super-2 number, since 2×133144342² = 35454831613225928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 33286084 + ... + 33286087.

It is an arithmetic number, because the mean of its divisors is an integer number (49929129).

Almost surely, 2^133144342 is an apocalyptic number.

133144342 is a deficient number, since it is larger than the sum of its proper divisors (66572174).

133144342 is an equidigital number, since it uses as much as digits as its factorization.

133144342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66572173.

The product of its digits is 3456, while the sum is 25.

The square root of 133144342 is about 11538.8189170296. The cubic root of 133144342 is about 510.6314643917.

Adding to 133144342 its reverse (243441331), we get a palindrome (376585673).

The spelling of 133144342 in words is "one hundred thirty-three million, one hundred forty-four thousand, three hundred forty-two".