133321542 has 8 divisors (see below), whose sum is σ = 266643096. Its totient is φ = 44440512.

The previous prime is 133321519. The next prime is 133321561. The reversal of 133321542 is 245123331.

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

133321542 is an admirable number.

It is a super-2 number, since 2×133321542² = 35549267122515528, which contains 22 as substring.

It is a congruent number.

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, 11110123 + ... + 11110134.

It is an arithmetic number, because the mean of its divisors is an integer number (33330387).

Almost surely, 2^133321542 is an apocalyptic number.

133321542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133321542 is a wasteful number, since it uses less digits than its factorization.

133321542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220262.

The product of its digits is 2160, while the sum is 24.

The square root of 133321542 is about 11546.4947927932. The cubic root of 133321542 is about 510.8578948018.

Adding to 133321542 its reverse (245123331), we get a palindrome (378444873).

The spelling of 133321542 in words is "one hundred thirty-three million, three hundred twenty-one thousand, five hundred forty-two".