133231042 has 32 divisors (see below), whose sum is σ = 241056000. Its totient is φ = 53991168.

The previous prime is 133231013. The next prime is 133231073. The reversal of 133231042 is 240132331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26334 + ... + 30982.

It is an arithmetic number, because the mean of its divisors is an integer number (7533000).

Almost surely, 2^133231042 is an apocalyptic number.

133231042 is a deficient number, since it is larger than the sum of its proper divisors (107824958).

133231042 is a wasteful number, since it uses less digits than its factorization.

133231042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133231042 is about 11542.5751892721. The cubic root of 133231042 is about 510.7422768159.

Adding to 133231042 its reverse (240132331), we get a palindrome (373363373).

It can be divided in two parts, 13323 and 1042, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 133231042 in words is "one hundred thirty-three million, two hundred thirty-one thousand, forty-two".