133494916 has 27 divisors (see below), whose sum is σ = 240311631. Its totient is φ = 64887264.

The previous prime is 133494877. The next prime is 133494929. The reversal of 133494916 is 619494331.

The square root of 133494916 is 11554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 23328900 + 110166016 = 4830^2 + 10496^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1224670 + ... + 1224778.

Almost surely, 2^133494916 is an apocalyptic number.

133494916 is the 11554-th square number.

It is an amenable number.

133494916 is a deficient number, since it is larger than the sum of its proper divisors (106816715).

133494916 is an equidigital number, since it uses as much as digits as its factorization.

133494916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 164 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The cubic root of 133494916 is about 511.0792421563.

The spelling of 133494916 in words is "one hundred thirty-three million, four hundred ninety-four thousand, nine hundred sixteen".