133412142 has 16 divisors (see below), whose sum is σ = 270807552. Its totient is φ = 43806840.

The previous prime is 133412137. The next prime is 133412159. The reversal of 133412142 is 241214331.

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, 165534 + ... + 166337.

It is an arithmetic number, because the mean of its divisors is an integer number (16925472).

Almost surely, 2^133412142 is an apocalyptic number.

133412142 is an abundant number, since it is smaller than the sum of its proper divisors (137395410).

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

133412142 is a wasteful number, since it uses less digits than its factorization.

133412142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331943.

The product of its digits is 576, while the sum is 21.

The square root of 133412142 is about 11550.4173950555. The cubic root of 133412142 is about 510.9735881457.

Adding to 133412142 its reverse (241214331), we get a palindrome (374626473).

The spelling of 133412142 in words is "one hundred thirty-three million, four hundred twelve thousand, one hundred forty-two".