133286830 has 32 divisors (see below), whose sum is σ = 249091200. Its totient is φ = 51313920.

The previous prime is 133286819. The next prime is 133286837. The reversal of 133286830 is 38682331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133286837) 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, 26346 + ... + 30994.

It is an arithmetic number, because the mean of its divisors is an integer number (7784100).

Almost surely, 2^133286830 is an apocalyptic number.

133286830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133286830 is a deficient number, since it is larger than the sum of its proper divisors (115804370).

133286830 is a wasteful number, since it uses less digits than its factorization.

133286830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 133286830 is about 11544.9915547825. The cubic root of 133286830 is about 510.8135547845.

The spelling of 133286830 in words is "one hundred thirty-three million, two hundred eighty-six thousand, eight hundred thirty".