133230516 has 12 divisors (see below), whose sum is σ = 310871232. Its totient is φ = 44410168.

The previous prime is 133230511. The next prime is 133230541. The reversal of 133230516 is 615032331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133230511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5551260 + ... + 5551283.

It is an arithmetic number, because the mean of its divisors is an integer number (25905936).

Almost surely, 2^133230516 is an apocalyptic number.

It is an amenable number.

133230516 is an abundant number, since it is smaller than the sum of its proper divisors (177640716).

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

133230516 is a wasteful number, since it uses less digits than its factorization.

133230516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11102550 (or 11102548 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 133230516 is about 11542.5524040396. The cubic root of 133230516 is about 510.7416046733.

Adding to 133230516 its reverse (615032331), we get a palindrome (748262847).

The spelling of 133230516 in words is "one hundred thirty-three million, two hundred thirty thousand, five hundred sixteen".