133503455 has 8 divisors (see below), whose sum is σ = 160272000. Its totient is φ = 106757536.

The previous prime is 133503451. The next prime is 133503457. The reversal of 133503455 is 554305331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133503455 - 2² = 133503451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133503451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12821 + ... + 20769.

It is an arithmetic number, because the mean of its divisors is an integer number (20034000).

Almost surely, 2^133503455 is an apocalyptic number.

133503455 is a deficient number, since it is larger than the sum of its proper divisors (26768545).

133503455 is an equidigital number, since it uses as much as digits as its factorization.

133503455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11313.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 133503455 is about 11554.3695197964. The cubic root of 133503455 is about 511.0901389823.

Adding to 133503455 its reverse (554305331), we get a palindrome (687808786).

The spelling of 133503455 in words is "one hundred thirty-three million, five hundred three thousand, four hundred fifty-five".