133231124 has 24 divisors (see below), whose sum is σ = 251799240. Its totient is φ = 61317504.

The previous prime is 133231121. The next prime is 133231129. The reversal of 133231124 is 421132331.

It can be written as a sum of positive squares in 4 ways, for example, as 1716100 + 131515024 = 1310^2 + 11468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133231096 and 133231105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133231121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15962 + ... + 22830.

It is an arithmetic number, because the mean of its divisors is an integer number (10491635).

Almost surely, 2^133231124 is an apocalyptic number.

It is an amenable number.

133231124 is a deficient number, since it is larger than the sum of its proper divisors (118568116).

133231124 is a wasteful number, since it uses less digits than its factorization.

133231124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7257 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 133231124 is about 11542.5787413385. The cubic root of 133231124 is about 510.7423815985.

Adding to 133231124 its reverse (421132331), we get a palindrome (554363455).

The spelling of 133231124 in words is "one hundred thirty-three million, two hundred thirty-one thousand, one hundred twenty-four".