133519752 has 48 divisors (see below), whose sum is σ = 375014640. Its totient is φ = 44505936.

The previous prime is 133519747. The next prime is 133519753. The reversal of 133519752 is 257915331.

133519752 is a `hidden beast` number, since 133 + 519 + 7 + 5 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (133519753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32398 + ... + 36285.

It is an arithmetic number, because the mean of its divisors is an integer number (7812805).

Almost surely, 2^133519752 is an apocalyptic number.

133519752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133519752 is an abundant number, since it is smaller than the sum of its proper divisors (241494888).

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

133519752 is an equidigital number, since it uses as much as digits as its factorization.

133519752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68704 (or 68688 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 133519752 is about 11555.0747293127. The cubic root of 133519752 is about 511.1109346915.

The spelling of 133519752 in words is "one hundred thirty-three million, five hundred nineteen thousand, seven hundred fifty-two".