133501376 has 28 divisors (see below), whose sum is σ = 273466560. Its totient is φ = 64596480.

The previous prime is 133501351. The next prime is 133501387. The reversal of 133501376 is 673105331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31661 + ... + 35628.

Almost surely, 2^133501376 is an apocalyptic number.

133501376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133501376 is an abundant number, since it is smaller than the sum of its proper divisors (139965184).

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

133501376 is an equidigital number, since it uses as much as digits as its factorization.

133501376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67332 (or 67322 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 133501376 is about 11554.2795534815. The cubic root of 133501376 is about 511.0874859625.

The spelling of 133501376 in words is "one hundred thirty-three million, five hundred one thousand, three hundred seventy-six".