133042224 has 40 divisors (see below), whose sum is σ = 392792320. Its totient is φ = 38011968.

The previous prime is 133042219. The next prime is 133042267. The reversal of 133042224 is 422240331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 133042224.

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, 197644 + ... + 198315.

It is an arithmetic number, because the mean of its divisors is an integer number (9819808).

Almost surely, 2^133042224 is an apocalyptic number.

133042224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133042224 is an abundant number, since it is smaller than the sum of its proper divisors (259750096).

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

133042224 is a wasteful number, since it uses less digits than its factorization.

133042224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395977 (or 395971 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 133042224 is about 11534.3930919663. The cubic root of 133042224 is about 510.5008843011.

Adding to 133042224 its reverse (422240331), we get a palindrome (555282555).

The spelling of 133042224 in words is "one hundred thirty-three million, forty-two thousand, two hundred twenty-four".