133355541 has 16 divisors (see below), whose sum is σ = 202406400. Its totient is φ = 77307120.

The previous prime is 133355533. The next prime is 133355557. The reversal of 133355541 is 145553331.

It is not a de Polignac number, because 133355541 - 2³ = 133355533 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133355499 and 133355508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133350541) 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, 87091 + ... + 88608.

It is an arithmetic number, because the mean of its divisors is an integer number (12650400).

Almost surely, 2^133355541 is an apocalyptic number.

133355541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133355541 is a deficient number, since it is larger than the sum of its proper divisors (69050859).

133355541 is a wasteful number, since it uses less digits than its factorization.

133355541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175736.

The product of its digits is 13500, while the sum is 30.

The square root of 133355541 is about 11547.9669639292. The cubic root of 133355541 is about 510.9013165952.

The spelling of 133355541 in words is "one hundred thirty-three million, three hundred fifty-five thousand, five hundred forty-one".