133425587 has 2 divisors, whose sum is σ = 133425588. Its totient is φ = 133425586.

The previous prime is 133425569. The next prime is 133425613. The reversal of 133425587 is 785524331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133425587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133425587.

It is not a weakly prime, because it can be changed into another prime (133425547) 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, 66712793 + 66712794.

It is an arithmetic number, because the mean of its divisors is an integer number (66712794).

Almost surely, 2^133425587 is an apocalyptic number.

133425587 is a deficient number, since it is larger than the sum of its proper divisors (1).

133425587 is an equidigital number, since it uses as much as digits as its factorization.

133425587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 133425587 is about 11550.9993939918. Note that the first 3 decimals coincide. The cubic root of 133425587 is about 510.9907525233.

The spelling of 133425587 in words is "one hundred thirty-three million, four hundred twenty-five thousand, five hundred eighty-seven".