1609464601 has 2 divisors, whose sum is σ = 1609464602. Its totient is φ = 1609464600.

The previous prime is 1609464589. The next prime is 1609464667. The reversal of 1609464601 is 1064649061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1414136025 + 195328576 = 37605^2 + 13976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1609464601 - 2⁷ = 1609464473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1609464401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804732300 + 804732301.

It is an arithmetic number, because the mean of its divisors is an integer number (804732301).

Almost surely, 2^1609464601 is an apocalyptic number.

It is an amenable number.

1609464601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609464601 is an equidigital number, since it uses as much as digits as its factorization.

1609464601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1609464601 is about 40118.1330697230. The cubic root of 1609464601 is about 1171.9087845487.

The spelling of 1609464601 in words is "one billion, six hundred nine million, four hundred sixty-four thousand, six hundred one".