133545500 has 48 divisors (see below), whose sum is σ = 318191328. Its totient is φ = 48560000.

The previous prime is 133545491. The next prime is 133545527. The reversal of 133545500 is 5545331.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133545500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6641 + ... + 17640.

It is an arithmetic number, because the mean of its divisors is an integer number (6628986).

Almost surely, 2^133545500 is an apocalyptic number.

133545500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133545500 is an abundant number, since it is smaller than the sum of its proper divisors (184645828).

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

133545500 is a wasteful number, since it uses less digits than its factorization.

133545500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311 (or 24299 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 133545500 is about 11556.1888181182. The cubic root of 133545500 is about 511.1437868559.

The spelling of 133545500 in words is "one hundred thirty-three million, five hundred forty-five thousand, five hundred".