133425613 has 2 divisors, whose sum is σ = 133425614. Its totient is φ = 133425612.

The previous prime is 133425587. The next prime is 133425623. The reversal of 133425613 is 316524331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 9815689 = 11118^2 + 3133^2 .

It is an emirp because it is prime and its reverse (316524331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133425613 - 2¹³ = 133417421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133425623) 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, 66712806 + 66712807.

It is an arithmetic number, because the mean of its divisors is an integer number (66712807).

Almost surely, 2^133425613 is an apocalyptic number.

It is an amenable number.

133425613 is a deficient number, since it is larger than the sum of its proper divisors (1).

133425613 is an equidigital number, since it uses as much as digits as its factorization.

133425613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 133425613 is about 11551.0005194355. Note that the first 3 decimals coincide. The cubic root of 133425613 is about 510.9907857147.

Adding to 133425613 its reverse (316524331), we get a palindrome (449949944).

The spelling of 133425613 in words is "one hundred thirty-three million, four hundred twenty-five thousand, six hundred thirteen".