133940436946 has 8 divisors (see below), whose sum is σ = 200924440524. Its totient is φ = 66965623440.

The previous prime is 133940436941. The next prime is 133940436947. The reversal of 133940436946 is 649634049331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72218500225 + 61721936721 = 268735^2 + 248439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 133940436893 and 133940436902.

It is not an unprimeable number, because it can be changed into a prime (133940436941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260965 + ... + 2319448.

Almost surely, 2^133940436946 is an apocalyptic number.

133940436946 is a deficient number, since it is larger than the sum of its proper divisors (66984003578).

133940436946 is a wasteful number, since it uses less digits than its factorization.

133940436946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595036.

The product of its (nonzero) digits is 5038848, while the sum is 52.

The spelling of 133940436946 in words is "one hundred thirty-three billion, nine hundred forty million, four hundred thirty-six thousand, nine hundred forty-six".