133540016 has 10 divisors (see below), whose sum is σ = 258733812. Its totient is φ = 66770000.

The previous prime is 133540013. The next prime is 133540031. The reversal of 133540016 is 610045331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133539973 and 133540000.

It is not an unprimeable number, because it can be changed into a prime (133540013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4173110 + ... + 4173141.

Almost surely, 2^133540016 is an apocalyptic number.

133540016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133540016 is a deficient number, since it is larger than the sum of its proper divisors (125193796).

133540016 is an equidigital number, since it uses as much as digits as its factorization.

133540016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346259 (or 8346253 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 133540016 is about 11555.9515402238. The cubic root of 133540016 is about 511.1367901122.

Adding to 133540016 its reverse (610045331), we get a palindrome (743585347).

The spelling of 133540016 in words is "one hundred thirty-three million, five hundred forty thousand, sixteen".