133233173 has 2 divisors, whose sum is σ = 133233174. Its totient is φ = 133233172.

The previous prime is 133233161. The next prime is 133233197. The reversal of 133233173 is 371332331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115068529 + 18164644 = 10727^2 + 4262^2 .

It is an emirp because it is prime and its reverse (371332331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133233173 - 2¹⁴ = 133216789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133233473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66616586 + 66616587.

It is an arithmetic number, because the mean of its divisors is an integer number (66616587).

Almost surely, 2^133233173 is an apocalyptic number.

It is an amenable number.

133233173 is a deficient number, since it is larger than the sum of its proper divisors (1).

133233173 is an equidigital number, since it uses as much as digits as its factorization.

133233173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 26.

The square root of 133233173 is about 11542.6674993261. The cubic root of 133233173 is about 510.7449998700.

The spelling of 133233173 in words is "one hundred thirty-three million, two hundred thirty-three thousand, one hundred seventy-three".