133731276 has 48 divisors (see below), whose sum is σ = 362476800. Its totient is φ = 37581120.

The previous prime is 133731259. The next prime is 133731277. The reversal of 133731276 is 672137331.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (133731277) 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, 7926 + ... + 18173.

It is an arithmetic number, because the mean of its divisors is an integer number (7551600).

Almost surely, 2^133731276 is an apocalyptic number.

It is an amenable number.

133731276 is an abundant number, since it is smaller than the sum of its proper divisors (228745524).

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

133731276 is a wasteful number, since it uses less digits than its factorization.

133731276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26174 (or 26172 counting only the distinct ones).

The product of its digits is 15876, while the sum is 33.

The square root of 133731276 is about 11564.2239687754. The cubic root of 133731276 is about 511.3806954995.

The spelling of 133731276 in words is "one hundred thirty-three million, seven hundred thirty-one thousand, two hundred seventy-six".