133065700 has 36 divisors (see below), whose sum is σ = 291578560. Its totient is φ = 52705440.

The previous prime is 133065697. The next prime is 133065701. The reversal of 133065700 is 7560331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (133065701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3841 + ... + 16759.

Almost surely, 2^133065700 is an apocalyptic number.

133065700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133065700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145789280).

133065700 is an abundant number, since it is smaller than the sum of its proper divisors (158512860).

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

133065700 is a wasteful number, since it uses less digits than its factorization.

133065700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13036 (or 13029 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 133065700 is about 11535.4106992339. The cubic root of 133065700 is about 510.5309093903.

The spelling of 133065700 in words is "one hundred thirty-three million, sixty-five thousand, seven hundred".