133258442 has 16 divisors (see below), whose sum is σ = 206064000. Its totient is φ = 64597248.

The previous prime is 133258441. The next prime is 133258459. The reversal of 133258442 is 244852331.

It is a junction number, because it is equal to n+sod(n) for n = 133258399 and 133258408.

It is not an unprimeable number, because it can be changed into a prime (133258441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 16682.

It is an arithmetic number, because the mean of its divisors is an integer number (12879000).

Almost surely, 2^133258442 is an apocalyptic number.

133258442 is a deficient number, since it is larger than the sum of its proper divisors (72805558).

133258442 is a wasteful number, since it uses less digits than its factorization.

133258442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405.

The product of its digits is 23040, while the sum is 32.

The square root of 133258442 is about 11543.7620384344. The cubic root of 133258442 is about 510.7772871232. Note that the first 3 decimals are identical.

The spelling of 133258442 in words is "one hundred thirty-three million, two hundred fifty-eight thousand, four hundred forty-two".