33230381 has 2 divisors, whose sum is σ = 33230382. Its totient is φ = 33230380.

The previous prime is 33230369. The next prime is 33230387. The reversal of 33230381 is 18303233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25755625 + 7474756 = 5075^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 33230381 - 2¹⁴ = 33213997 is a prime.

It is a super-2 number, since 2×33230381² = 2208516442810322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33230387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16615190 + 16615191.

It is an arithmetic number, because the mean of its divisors is an integer number (16615191).

Almost surely, 2^33230381 is an apocalyptic number.

It is an amenable number.

33230381 is a deficient number, since it is larger than the sum of its proper divisors (1).

33230381 is an equidigital number, since it uses as much as digits as its factorization.

33230381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 33230381 is about 5764.5798632684. The cubic root of 33230381 is about 321.4981218856.

The spelling of 33230381 in words is "thirty-three million, two hundred thirty thousand, three hundred eighty-one".