133421061 has 8 divisors (see below), whose sum is σ = 178020640. Its totient is φ = 88884432.

The previous prime is 133421047. The next prime is 133421063. The reversal of 133421061 is 160124331.

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

It is not a de Polignac number, because 133421061 - 2⁷ = 133420933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133421063) 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, 10546 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (22252580).

Almost surely, 2^133421061 is an apocalyptic number.

It is an amenable number.

133421061 is a deficient number, since it is larger than the sum of its proper divisors (44599579).

133421061 is a wasteful number, since it uses less digits than its factorization.

133421061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31475.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 133421061 is about 11550.8034785464. The cubic root of 133421061 is about 510.9849745953.

Adding to 133421061 its reverse (160124331), we get a palindrome (293545392).

The spelling of 133421061 in words is "one hundred thirty-three million, four hundred twenty-one thousand, sixty-one".