133034421 has 16 divisors (see below), whose sum is σ = 192249344. Its totient is φ = 81342144.

The previous prime is 133034417. The next prime is 133034431. The reversal of 133034421 is 124430331.

It is not a de Polignac number, because 133034421 - 2² = 133034417 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 (133034431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4741 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (12015584).

Almost surely, 2^133034421 is an apocalyptic number.

It is an amenable number.

133034421 is a deficient number, since it is larger than the sum of its proper divisors (59214923).

133034421 is a wasteful number, since it uses less digits than its factorization.

133034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21900.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133034421 is about 11534.0548377403. The cubic root of 133034421 is about 510.4909037196.

Adding to 133034421 its reverse (124430331), we get a palindrome (257464752).

The spelling of 133034421 in words is "one hundred thirty-three million, thirty-four thousand, four hundred twenty-one".