133006442 has 8 divisors (see below), whose sum is σ = 199562016. Its totient is φ = 66485772.

The previous prime is 133006429. The next prime is 133006463. The reversal of 133006442 is 244600331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133006442² = 35381427226998728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333 + ... + 17159.

It is an arithmetic number, because the mean of its divisors is an integer number (24945252).

Almost surely, 2^133006442 is an apocalyptic number.

133006442 is a deficient number, since it is larger than the sum of its proper divisors (66555574).

133006442 is a wasteful number, since it uses less digits than its factorization.

133006442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17452.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133006442 is about 11532.8418874101. The cubic root of 133006442 is about 510.4551134173.

Adding to 133006442 its reverse (244600331), we get a palindrome (377606773).

The spelling of 133006442 in words is "one hundred thirty-three million, six thousand, four hundred forty-two".