133303142 has 8 divisors (see below), whose sum is σ = 228519696. Its totient is φ = 57129912.

The previous prime is 133303141. The next prime is 133303151. The reversal of 133303142 is 241303331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133303141) 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, 4760813 + ... + 4760840.

It is an arithmetic number, because the mean of its divisors is an integer number (28564962).

Almost surely, 2^133303142 is an apocalyptic number.

133303142 is a deficient number, since it is larger than the sum of its proper divisors (95216554).

133303142 is an equidigital number, since it uses as much as digits as its factorization.

133303142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521662.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133303142 is about 11545.6979866962. The cubic root of 133303142 is about 510.8343921791.

Adding to 133303142 its reverse (241303331), we get a palindrome (374606473).

The spelling of 133303142 in words is "one hundred thirty-three million, three hundred three thousand, one hundred forty-two".