133210320 has 40 divisors (see below), whose sum is σ = 412952736. Its totient is φ = 35522688.

The previous prime is 133210313. The next prime is 133210331. The reversal of 133210320 is 23012331.

133210320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 133210320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277282 + ... + 277761.

Almost surely, 2^133210320 is an apocalyptic number.

133210320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133210320 is an abundant number, since it is smaller than the sum of its proper divisors (279742416).

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

133210320 is a wasteful number, since it uses less digits than its factorization.

133210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555059 (or 555053 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133210320 is about 11541.6775210539. The cubic root of 133210320 is about 510.7157961248.

Adding to 133210320 its reverse (23012331), we get a palindrome (156222651).

The spelling of 133210320 in words is "one hundred thirty-three million, two hundred ten thousand, three hundred twenty".