133242232 has 16 divisors (see below), whose sum is σ = 249975000. Its totient is φ = 66582240.

The previous prime is 133242229. The next prime is 133242233. The reversal of 133242232 is 232242331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133242233) 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, 14019 + ... + 21517.

Almost surely, 2^133242232 is an apocalyptic number.

It is an amenable number.

133242232 is a deficient number, since it is larger than the sum of its proper divisors (116732768).

133242232 is a wasteful number, since it uses less digits than its factorization.

133242232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726 (or 9722 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 133242232 is about 11543.0599062813. The cubic root of 133242232 is about 510.7565754008.

Adding to 133242232 its reverse (232242331), we get a palindrome (365484563).

Subtracting 133242232 from its reverse (232242331), we obtain a palindrome (99000099).

The spelling of 133242232 in words is "one hundred thirty-three million, two hundred forty-two thousand, two hundred thirty-two".