133283756 has 24 divisors (see below), whose sum is σ = 244177920. Its totient is φ = 63579600.

The previous prime is 133283753. The next prime is 133283767. The reversal of 133283756 is 657382331.

It is a super-2 number, since 2×133283756² = 35529119226935072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133283753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235 + ... + 16373.

It is an arithmetic number, because the mean of its divisors is an integer number (10174080).

Almost surely, 2^133283756 is an apocalyptic number.

It is an amenable number.

133283756 is a deficient number, since it is larger than the sum of its proper divisors (110894164).

133283756 is a wasteful number, since it uses less digits than its factorization.

133283756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245 (or 15243 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 133283756 is about 11544.8584226919. The cubic root of 133283756 is about 510.8096277825.

The spelling of 133283756 in words is "one hundred thirty-three million, two hundred eighty-three thousand, seven hundred fifty-six".