3133381 has 2 divisors, whose sum is σ = 3133382. Its totient is φ = 3133380.

The previous prime is 3133357. The next prime is 3133397. The reversal of 3133381 is 1833313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2722500 + 410881 = 1650^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 3133381 - 2¹³ = 3125189 is a prime.

It is a super-2 number, since 2×3133381² = 19636152982322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3133331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566690 + 1566691.

It is an arithmetic number, because the mean of its divisors is an integer number (1566691).

Almost surely, 2^3133381 is an apocalyptic number.

It is an amenable number.

3133381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133381 is an equidigital number, since it uses as much as digits as its factorization.

3133381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 3133381 is about 1770.1358704913. The cubic root of 3133381 is about 146.3314699366.

Adding to 3133381 its reverse (1833313), we get a palindrome (4966694).

The spelling of 3133381 in words is "three million, one hundred thirty-three thousand, three hundred eighty-one".