609040903 has 2 divisors, whose sum is σ = 609040904. Its totient is φ = 609040902.

The previous prime is 609040889. The next prime is 609040961. The reversal of 609040903 is 309040906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609040903 - 2²¹ = 606943751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609040703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304520451 + 304520452.

It is an arithmetic number, because the mean of its divisors is an integer number (304520452).

Almost surely, 2^609040903 is an apocalyptic number.

609040903 is a deficient number, since it is larger than the sum of its proper divisors (1).

609040903 is an equidigital number, since it uses as much as digits as its factorization.

609040903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 609040903 is about 24678.7540811930. The cubic root of 609040903 is about 847.6478931376.

The spelling of 609040903 in words is "six hundred nine million, forty thousand, nine hundred three".