133620413 has 2 divisors, whose sum is σ = 133620414. Its totient is φ = 133620412.

The previous prime is 133620329. The next prime is 133620437. The reversal of 133620413 is 314026331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 1898884 = 11477^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 133620413 - 2¹⁶ = 133554877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133620463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66810206 + 66810207.

It is an arithmetic number, because the mean of its divisors is an integer number (66810207).

Almost surely, 2^133620413 is an apocalyptic number.

It is an amenable number.

133620413 is a deficient number, since it is larger than the sum of its proper divisors (1).

133620413 is an equidigital number, since it uses as much as digits as its factorization.

133620413 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 133620413 is about 11559.4296139559. The cubic root of 133620413 is about 511.2393451908.

Adding to 133620413 its reverse (314026331), we get a palindrome (447646744).

The spelling of 133620413 in words is "one hundred thirty-three million, six hundred twenty thousand, four hundred thirteen".