133780353 has 16 divisors (see below), whose sum is σ = 208598016. Its totient is φ = 74667600.

The previous prime is 133780343. The next prime is 133780357. The reversal of 133780353 is 353087331.

It is not a de Polignac number, because 133780353 - 2⁶ = 133780289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133780357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73173 + ... + 74978.

It is an arithmetic number, because the mean of its divisors is an integer number (13037376).

Almost surely, 2^133780353 is an apocalyptic number.

It is an amenable number.

133780353 is a deficient number, since it is larger than the sum of its proper divisors (74817663).

133780353 is a wasteful number, since it uses less digits than its factorization.

133780353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148204.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 133780353 is about 11566.3457064018. The cubic root of 133780353 is about 511.4432437224.

The spelling of 133780353 in words is "one hundred thirty-three million, seven hundred eighty thousand, three hundred fifty-three".