133000540 has 24 divisors (see below), whose sum is σ = 288312192. Its totient is φ = 51483840.

The previous prime is 133000531. The next prime is 133000603. The reversal of 133000540 is 45000331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106639 + ... + 107878.

It is an arithmetic number, because the mean of its divisors is an integer number (12013008).

Almost surely, 2^133000540 is an apocalyptic number.

133000540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133000540 is an abundant number, since it is smaller than the sum of its proper divisors (155311652).

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

133000540 is a wasteful number, since it uses less digits than its factorization.

133000540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214557 (or 214555 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 133000540 is about 11532.5860066162. The cubic root of 133000540 is about 510.4475630296.

Adding to 133000540 its reverse (45000331), we get a palindrome (178000871).

The spelling of 133000540 in words is "one hundred thirty-three million, five hundred forty", and thus it is an aban number.