133320048 has 20 divisors (see below), whose sum is σ = 344410248. Its totient is φ = 44440000.

The previous prime is 133319993. The next prime is 133320049. The reversal of 133320048 is 840023331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133320049) 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, 1388703 + ... + 1388798.

Almost surely, 2^133320048 is an apocalyptic number.

It is an amenable number.

133320048 is an abundant number, since it is smaller than the sum of its proper divisors (211090200).

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

133320048 is a wasteful number, since it uses less digits than its factorization.

133320048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777512 (or 2777506 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 133320048 is about 11546.4300976536. The cubic root of 133320048 is about 510.8559865717.

Adding to 133320048 its reverse (840023331), we get a palindrome (973343379).

The spelling of 133320048 in words is "one hundred thirty-three million, three hundred twenty thousand, forty-eight".