133403430 has 32 divisors (see below), whose sum is σ = 320548608. Its totient is φ = 35532000.

The previous prime is 133403407. The next prime is 133403449. The reversal of 133403430 is 34304331.

It is a junction number, because it is equal to n+sod(n) for n = 133403397 and 133403406.

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, 29415 + ... + 33645.

It is an arithmetic number, because the mean of its divisors is an integer number (10017144).

Almost surely, 2^133403430 is an apocalyptic number.

133403430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133403430 is an abundant number, since it is smaller than the sum of its proper divisors (187145178).

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

133403430 is a wasteful number, since it uses less digits than its factorization.

133403430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292.

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

The square root of 133403430 is about 11550.0402596701. The cubic root of 133403430 is about 510.9624654730.

Adding to 133403430 its reverse (34304331), we get a palindrome (167707761).

Subtracting from 133403430 its reverse (34304331), we obtain a palindrome (99099099).

The spelling of 133403430 in words is "one hundred thirty-three million, four hundred three thousand, four hundred thirty".