609113321 has 2 divisors, whose sum is σ = 609113322. Its totient is φ = 609113320.

The previous prime is 609113317. The next prime is 609113359. The reversal of 609113321 is 123311906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604618921 + 4494400 = 24589^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 609113321 - 2² = 609113317 is a prime.

It is not a weakly prime, because it can be changed into another prime (609113311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304556660 + 304556661.

It is an arithmetic number, because the mean of its divisors is an integer number (304556661).

Almost surely, 2^609113321 is an apocalyptic number.

It is an amenable number.

609113321 is a deficient number, since it is larger than the sum of its proper divisors (1).

609113321 is an equidigital number, since it uses as much as digits as its factorization.

609113321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 609113321 is about 24680.2212510342. The cubic root of 609113321 is about 847.6814883264.

The spelling of 609113321 in words is "six hundred nine million, one hundred thirteen thousand, three hundred twenty-one".