133203442 has 24 divisors (see below), whose sum is σ = 211534848. Its totient is φ = 62785800.

The previous prime is 133203439. The next prime is 133203457. The reversal of 133203442 is 244302331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 882067 + ... + 882217.

It is an arithmetic number, because the mean of its divisors is an integer number (8813952).

Almost surely, 2^133203442 is an apocalyptic number.

133203442 is a deficient number, since it is larger than the sum of its proper divisors (78331406).

133203442 is a wasteful number, since it uses less digits than its factorization.

133203442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 133203442 is about 11541.3795535889. The cubic root of 133203442 is about 510.7070061059.

Adding to 133203442 its reverse (244302331), we get a palindrome (377505773).

The spelling of 133203442 in words is "one hundred thirty-three million, two hundred three thousand, four hundred forty-two".