133423230 has 32 divisors (see below), whose sum is σ = 334139904. Its totient is φ = 34032416.

The previous prime is 133423211. The next prime is 133423267. The reversal of 133423230 is 32324331.

It is a junction number, because it is equal to n+sod(n) for n = 133423197 and 133423206.

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, 95994 + ... + 97373.

It is an arithmetic number, because the mean of its divisors is an integer number (10441872).

Almost surely, 2^133423230 is an apocalyptic number.

133423230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133423230 is an abundant number, since it is smaller than the sum of its proper divisors (200716674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133423230 is a wasteful number, since it uses less digits than its factorization.

133423230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193400.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 133423230 is about 11550.8973677373. The cubic root of 133423230 is about 510.9877435745.

Adding to 133423230 its reverse (32324331), we get a palindrome (165747561).

It can be divided in two parts, 13 and 3423230, that added together give a palindrome (3423243).

The spelling of 133423230 in words is "one hundred thirty-three million, four hundred twenty-three thousand, two hundred thirty".