133421230 has 32 divisors (see below), whose sum is σ = 254275200. Its totient is φ = 50264352.

The previous prime is 133421227. The next prime is 133421251. The reversal of 133421230 is 32124331.

It is a super-2 number, since 2×133421230² = 35602449229425800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 133421198 and 133421207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32049 + ... + 35971.

It is an arithmetic number, because the mean of its divisors is an integer number (7946100).

Almost surely, 2^133421230 is an apocalyptic number.

133421230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133421230 is a deficient number, since it is larger than the sum of its proper divisors (120853970).

133421230 is a wasteful number, since it uses less digits than its factorization.

133421230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128.

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

The square root of 133421230 is about 11550.8107940525. The cubic root of 133421230 is about 510.9851903444.

Adding to 133421230 its reverse (32124331), we get a palindrome (165545561).

It can be divided in two parts, 13 and 3421230, that added together give a palindrome (3421243).

The spelling of 133421230 in words is "one hundred thirty-three million, four hundred twenty-one thousand, two hundred thirty".