133412442 has 32 divisors (see below), whose sum is σ = 276200064. Its totient is φ = 42931200.

The previous prime is 133412407. The next prime is 133412449. The reversal of 133412442 is 244214331.

It is not an unprimeable number, because it can be changed into a prime (133412449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21067 + ... + 26657.

It is an arithmetic number, because the mean of its divisors is an integer number (8631252).

Almost surely, 2^133412442 is an apocalyptic number.

133412442 is an abundant number, since it is smaller than the sum of its proper divisors (142787622).

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

133412442 is a wasteful number, since it uses less digits than its factorization.

133412442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734.

The product of its digits is 2304, while the sum is 24.

The square root of 133412442 is about 11550.4303815918. The cubic root of 133412442 is about 510.9739711493.

Adding to 133412442 its reverse (244214331), we get a palindrome (377626773).

The spelling of 133412442 in words is "one hundred thirty-three million, four hundred twelve thousand, four hundred forty-two".