133420232 has 32 divisors (see below), whose sum is σ = 279568800. Its totient is φ = 59164800.

The previous prime is 133420229. The next prime is 133420241. The reversal of 133420232 is 232024331.

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, 14882 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (8736525).

Almost surely, 2^133420232 is an apocalyptic number.

It is an amenable number.

133420232 is an abundant number, since it is smaller than the sum of its proper divisors (146148568).

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

133420232 is a wasteful number, since it uses less digits than its factorization.

133420232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037 (or 37033 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133420232 is about 11550.7675935411. The cubic root of 133420232 is about 510.9839162731.

Adding to 133420232 its reverse (232024331), we get a palindrome (365444563).

The spelling of 133420232 in words is "one hundred thirty-three million, four hundred twenty thousand, two hundred thirty-two".