133550535 has 32 divisors (see below), whose sum is σ = 223699968. Its totient is φ = 67907840.

The previous prime is 133550509. The next prime is 133550537. The reversal of 133550535 is 535055331.

It is not a de Polignac number, because 133550535 - 2⁶ = 133550471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133550537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179374 + ... + 180116.

It is an arithmetic number, because the mean of its divisors is an integer number (6990624).

Almost surely, 2^133550535 is an apocalyptic number.

133550535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133550535 is a deficient number, since it is larger than the sum of its proper divisors (90149433).

133550535 is a wasteful number, since it uses less digits than its factorization.

133550535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 16875, while the sum is 30.

The square root of 133550535 is about 11556.4066647033. The cubic root of 133550535 is about 511.1502105757.

The spelling of 133550535 in words is "one hundred thirty-three million, five hundred fifty thousand, five hundred thirty-five".