133966522 has 4 divisors (see below), whose sum is σ = 200949786. Its totient is φ = 66983260.

The previous prime is 133966519. The next prime is 133966523. The reversal of 133966522 is 225669331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 132687361 + 1279161 = 11519^2 + 1131^2 .

It is not an unprimeable number, because it can be changed into a prime (133966523) 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, 33491629 + ... + 33491632.

Almost surely, 2^133966522 is an apocalyptic number.

133966522 is a deficient number, since it is larger than the sum of its proper divisors (66983264).

133966522 is an equidigital number, since it uses as much as digits as its factorization.

133966522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66983263.

The product of its digits is 58320, while the sum is 37.

The square root of 133966522 is about 11574.3907831039. The cubic root of 133966522 is about 511.6803755636.

The spelling of 133966522 in words is "one hundred thirty-three million, nine hundred sixty-six thousand, five hundred twenty-two".