133230421 has 8 divisors (see below), whose sum is σ = 139382784. Its totient is φ = 127108080.

The previous prime is 133230407. The next prime is 133230463. The reversal of 133230421 is 124032331.

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 133230421 - 2⁵ = 133230389 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 (133230491) 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, 1836 + ... + 16426.

It is an arithmetic number, because the mean of its divisors is an integer number (17422848).

Almost surely, 2^133230421 is an apocalyptic number.

It is an amenable number.

133230421 is a deficient number, since it is larger than the sum of its proper divisors (6152363).

133230421 is a wasteful number, since it uses less digits than its factorization.

133230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133230421 is about 11542.5482888312. The cubic root of 133230421 is about 510.7414832785.

Adding to 133230421 its reverse (124032331), we get a palindrome (257262752).

The spelling of 133230421 in words is "one hundred thirty-three million, two hundred thirty thousand, four hundred twenty-one".