134221603 has 2 divisors, whose sum is σ = 134221604. Its totient is φ = 134221602.

The previous prime is 134221501. The next prime is 134221631. The reversal of 134221603 is 306122431.

It is a strong prime.

It is an emirp because it is prime and its reverse (306122431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134221603 - 2¹³ = 134213411 is a prime.

It is not a weakly prime, because it can be changed into another prime (134224603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67110801 + 67110802.

It is an arithmetic number, because the mean of its divisors is an integer number (67110802).

Almost surely, 2^134221603 is an apocalyptic number.

134221603 is a deficient number, since it is larger than the sum of its proper divisors (1).

134221603 is an equidigital number, since it uses as much as digits as its factorization.

134221603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 134221603 is about 11585.4047404482. The cubic root of 134221603 is about 512.0049272699.

The spelling of 134221603 in words is "one hundred thirty-four million, two hundred twenty-one thousand, six hundred three".