133456634 has 4 divisors (see below), whose sum is σ = 200184954. Its totient is φ = 66728316.

The previous prime is 133456607. The next prime is 133456639. The reversal of 133456634 is 436654331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436654331 = 71 ⋅6150061.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 7006609 = 11245^2 + 2647^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133456594 and 133456603.

It is not an unprimeable number, because it can be changed into a prime (133456639) 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, 33364157 + ... + 33364160.

Almost surely, 2^133456634 is an apocalyptic number.

133456634 is a deficient number, since it is larger than the sum of its proper divisors (66728320).

133456634 is an equidigital number, since it uses as much as digits as its factorization.

133456634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66728319.

The product of its digits is 77760, while the sum is 35.

The square root of 133456634 is about 11552.3432255106. The cubic root of 133456634 is about 511.0303838511.

The spelling of 133456634 in words is "one hundred thirty-three million, four hundred fifty-six thousand, six hundred thirty-four".