133819752 has 32 divisors (see below), whose sum is σ = 364963680. Its totient is φ = 40551360.

The previous prime is 133819747. The next prime is 133819769. The reversal of 133819752 is 257918331.

It is a self number, because there is not a number n which added to its sum of digits gives 133819752.

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, 253183 + ... + 253710.

It is an arithmetic number, because the mean of its divisors is an integer number (11405115).

Almost surely, 2^133819752 is an apocalyptic number.

133819752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133819752 is an abundant number, since it is smaller than the sum of its proper divisors (231143928).

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

133819752 is a wasteful number, since it uses less digits than its factorization.

133819752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506913 (or 506909 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 133819752 is about 11568.0487550840. The cubic root of 133819752 is about 511.4934463470.

The spelling of 133819752 in words is "one hundred thirty-three million, eight hundred nineteen thousand, seven hundred fifty-two".