133304142 has 16 divisors (see below), whose sum is σ = 269821440. Its totient is φ = 43899192.

The previous prime is 133304137. The next prime is 133304167. The reversal of 133304142 is 241403331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133342 + ... + 134337.

It is an arithmetic number, because the mean of its divisors is an integer number (16863840).

Almost surely, 2^133304142 is an apocalyptic number.

133304142 is an abundant number, since it is smaller than the sum of its proper divisors (136517298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133304142 is a wasteful number, since it uses less digits than its factorization.

133304142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267767.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133304142 is about 11545.7412927884. The cubic root of 133304142 is about 510.8356695511.

Adding to 133304142 its reverse (241403331), we get a palindrome (374707473).

The spelling of 133304142 in words is "one hundred thirty-three million, three hundred four thousand, one hundred forty-two".