133683722 has 4 divisors (see below), whose sum is σ = 200525586. Its totient is φ = 66841860.

The previous prime is 133683691. The next prime is 133683727. The reversal of 133683722 is 227386331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227386331 = 233 ⋅975907.

It can be written as a sum of positive squares in only one way, i.e., 68574961 + 65108761 = 8281^2 + 8069^2 .

It is not an unprimeable number, because it can be changed into a prime (133683727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33420929 + ... + 33420932.

Almost surely, 2^133683722 is an apocalyptic number.

133683722 is a deficient number, since it is larger than the sum of its proper divisors (66841864).

133683722 is an equidigital number, since it uses as much as digits as its factorization.

133683722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66841863.

The product of its digits is 36288, while the sum is 35.

The square root of 133683722 is about 11562.1677033331. The cubic root of 133683722 is about 511.3200737278.

It can be divided in two parts, 1336 and 83722, that added together give a palindrome (85058).

The spelling of 133683722 in words is "one hundred thirty-three million, six hundred eighty-three thousand, seven hundred twenty-two".