133077213 has 12 divisors (see below), whose sum is σ = 192515388. Its totient is φ = 88583040.

The previous prime is 133077199. The next prime is 133077221. The reversal of 133077213 is 312770331.

It can be written as a sum of positive squares in 2 ways, for example, as 62062884 + 71014329 = 7878^2 + 8427^2 .

It is not a de Polignac number, because 133077213 - 2¹⁰ = 133076189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133077253) 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, 4828 + ... + 17013.

It is an arithmetic number, because the mean of its divisors is an integer number (16042949).

Almost surely, 2^133077213 is an apocalyptic number.

It is an amenable number.

133077213 is a deficient number, since it is larger than the sum of its proper divisors (59438175).

133077213 is a wasteful number, since it uses less digits than its factorization.

133077213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22524 (or 22521 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 133077213 is about 11535.9097170531. The cubic root of 133077213 is about 510.5456328761.

The spelling of 133077213 in words is "one hundred thirty-three million, seventy-seven thousand, two hundred thirteen".