133066540 has 48 divisors (see below), whose sum is σ = 285288192. Its totient is φ = 52125696.

The previous prime is 133066537. The next prime is 133066543. The reversal of 133066540 is 45660331.

It is an interprime number because it is at equal distance from previous prime (133066537) and next prime (133066543).

It is a junction number, because it is equal to n+sod(n) for n = 133066499 and 133066508.

It is not an unprimeable number, because it can be changed into a prime (133066543) 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, 218917 + ... + 219523.

It is an arithmetic number, because the mean of its divisors is an integer number (5943504).

Almost surely, 2^133066540 is an apocalyptic number.

133066540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133066540 is an abundant number, since it is smaller than the sum of its proper divisors (152221652).

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

133066540 is a wasteful number, since it uses less digits than its factorization.

133066540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 133066540 is about 11535.4471088034. The cubic root of 133066540 is about 510.5319836593.

The spelling of 133066540 in words is "one hundred thirty-three million, sixty-six thousand, five hundred forty".