133013673 has 12 divisors (see below), whose sum is σ = 206910340. Its totient is φ = 81854496.

The previous prime is 133013599. The next prime is 133013689. The reversal of 133013673 is 376310331.

It can be written as a sum of positive squares in 2 ways, for example, as 80784144 + 52229529 = 8988^2 + 7227^2 .

It is not a de Polignac number, because 133013673 - 2⁸ = 133013417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133013773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568318 + ... + 568551.

Almost surely, 2^133013673 is an apocalyptic number.

133013673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

133013673 is a deficient number, since it is larger than the sum of its proper divisors (73896667).

133013673 is a wasteful number, since it uses less digits than its factorization.

133013673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136888 (or 1136885 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 133013673 is about 11533.1553791666. The cubic root of 133013673 is about 510.4643636812.

The spelling of 133013673 in words is "one hundred thirty-three million, thirteen thousand, six hundred seventy-three".