133137284 has 12 divisors (see below), whose sum is σ = 266274624. Its totient is φ = 57058824.

The previous prime is 133137247. The next prime is 133137293. The reversal of 133137284 is 482731331.

133137284 is an admirable number.

It is a super-5 number, since 5×133137284⁵ (a number of 42 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133137284.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377424 + ... + 2377479.

It is an arithmetic number, because the mean of its divisors is an integer number (22189552).

Almost surely, 2^133137284 is an apocalyptic number.

133137284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133137284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133137284 is a wasteful number, since it uses less digits than its factorization.

133137284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754914 (or 4754912 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 133137284 is about 11538.5130757823. The cubic root of 133137284 is about 510.6224413508.

The spelling of 133137284 in words is "one hundred thirty-three million, one hundred thirty-seven thousand, two hundred eighty-four".