133411421 has 8 divisors (see below), whose sum is σ = 156735264. Its totient is φ = 111953520.

The previous prime is 133411387. The next prime is 133411429. The reversal of 133411421 is 124114331.

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

It is a cyclic number.

It is not a de Polignac number, because 133411421 - 2¹⁴ = 133395037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133411393 and 133411402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133411429) 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, 466331 + ... + 466616.

It is an arithmetic number, because the mean of its divisors is an integer number (19591908).

Almost surely, 2^133411421 is an apocalyptic number.

133411421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133411421 is a deficient number, since it is larger than the sum of its proper divisors (23323843).

133411421 is a wasteful number, since it uses less digits than its factorization.

133411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932971.

The product of its digits is 288, while the sum is 20.

The square root of 133411421 is about 11550.3861840200. The cubic root of 133411421 is about 510.9726676583.

Adding to 133411421 its reverse (124114331), we get a palindrome (257525752).

The spelling of 133411421 in words is "one hundred thirty-three million, four hundred eleven thousand, four hundred twenty-one".